The Long March 2F rocket first flew at 6 am on November 20, 1999. It has been nearly 22 years since the Long March 5, Long March 7, and Long March 8 new generation launch vehicles have succeeded in succession. At present, the technical capability of the Long March 2F rocket to ensure the complex mission of manned flight is still irreplaceable. .

God Arrow “Long March 2F”

Looking at the global launch vehicle products can be described as a dazzling array, but with high reliability, high safety, high quality three-element standards, There are only three rockets that are qualified to launch manned spacecraft in the world today, namely Soyuz, Long March 2F, and Falcon 9.

So, what kind of talents does Long March 2F have among them?

The originator of the Long March 2F manned launch vehicle is the DF-5 missile , This type of rocket adopts a two-stage semi-configuration design, the propellant is nitrous oxide and unsymmetrical dimethyl hydrazine, the core stage diameter is 3.35 meters, it is equipped with four unidirectional swing engines with a thrust of 75 tons, and four booster diameters. 2.25 meters, each equipped with a 75-ton thrust fixed nozzle engine, the rocket’s take-off stage thrust is about 604 tons, the take-off mass is 480 tons, and the capacity is 8.1 tons under the condition of an inclination of 42° in the low-Earth orbit of 200 kilometers.

Long March 2F take-off stage power

The core level two is quite special, equipped with two engines, namely a main engine (a high-altitude version of the core level one engine) and a swimming engine.

The swimming engine is the secret of the core level 2 This type of engine has a thrust of about 4.8 tons, has 4 thrust chambers, and 4 nozzles are arranged around the main engine. At the same time, it is also the last engine shut down in the entire rocket power system. It can increase the height of the load into orbit by extending the working time. Adjusting the capacity can also eliminate the thrust deviation generated after the main engine is shut down, and further improve the accuracy of the load on track.

Core two power configuration

The private aerospace company “Blue Arrow Aerospace” has recently completed the 300-second + 750-second joint test of the second-stage engine of the Suzaku 2 rocket core. This rocket is expected to become the first liquid oxygen methane fuel rocket that can be launched into orbit. The second-level power layout scheme is the same as the Long March 2F core second-level. It is also composed of a main engine and a 4-thrust chamber swimming engine. It can be said to be a classic case of old trees and new flowers. This shows that private aerospace is not passive. Water is rooted in the aerospace industry capabilities accumulated over decades.

Suzaku II rocket core second stage joint test run

The difference between manned rockets and other rockets is concentrated in the “three highs”, namely High safety, high reliability, high quality Among them, high safety is the first issue, because manned spaceflight is a matter of life, and what it launches is not a cold spacecraft, but a living person.

Shenzhou 6 crew: Nie Haisheng and Fei Junlong

The reliability index of the Long March 2F rocket is set to not less than 0.97 against the international advanced level, which means that there are 3 failure probability design values ​​for 100 launches. In the event of a failure, it can ensure that the astronauts can safely return to the ground through life-saving means. .

At the same time, it also has a safety index of 0.997, which means that there are 30 failure probabilities of this type of rocket’s 1,000 launch missions, and 27 of these 30 failed launch missions, the astronauts can return safely through life-saving means.

In fact, it is impossible for the Shenzhou spacecraft to launch 1,000 times, or even 100 times, because the product is constantly iterating, and there will be a new generation of manned spacecraft and a new generation of manned rockets.

Shenzhou-6 manned spacecraft and fairing combination

Therefore, the launch mission of the Shenzhou spacecraft requires success again and again to ensure absolute safety. Up to now, the Long March 2F series rockets have implemented 14 launch missions with a success rate of 100%, which proves the scientific nature of the reliability index of not less than 0.97.

The success of past missions was a confident ballast, but after all, the astronauts flying to the sky were lying on top of a rapidly burning fuel tank of hundreds of tons. The high risk is self-evident. As Murphy’s law points out, if things are likely to go bad, no matter how small the possibility is, it will always happen. The Long March 2F carrier rocket has already made contingency preparations for the worst.

Long March 2F Yao-11 launch vehicle flight monitoring screen

There are two fundamental differences between the Long March 2F and other rockets, namely the addition of an escape system and a fault detection and processing system. The failure of the rocket in the high-speed flight state usually takes milliseconds as the time unit to react. It is very unrealistic to rely on the astronauts to manually decide whether to activate the escape system. The fault detection and processing system can make the decision on behalf of it. At that moment, the state of the rocket is monitored throughout the process, and the method of escape is automatically decided based on the fault feedback.

The most distinctive structure of the Long March 2F rocket is the escape tower on the top. The escape tower is an important part of the escape vehicle. The escape aircraft is an escape device similar to the principle of badminton, which has high requirements for flight stability.

Escape tower

The uppermost part of the escape tower is a counterweight structure, which can move the center of mass of the escape vehicle forward (analogous to the ball head of a badminton). At the same time, the upper fairing is equipped with 4 grid wings (analogous to the feathers of a badminton), which can make the center of pressure move backward. , The two work together to ensure the flight stability of the escape aircraft.

Grid wings in a folded state

The counterweight module near the top of the escape tower is the “attitude control engine combination”, which is composed of 4 engines with the same thrust, and is responsible for pitch and yaw missions.

Below the attitude control engine is the separation engine. It has two functions. It is responsible for separating the escape tower during normal flight missions without danger, and the other is to provide power support for the separation of the spacecraft’s return cabin and the escape vehicle during escape missions.Separate engine is 1 Front nozzle solid rocket motor , There are 8 nozzles.

Escape Tower Label

Below the separated engine is the main escape engine, which is responsible for taking the escape aircraft out of the danger zone as a whole. It is also a solid rocket motor with front nozzles and has 4 nozzles.

The escape tower has a total of 6 engines, all of which are solid fuel rocket engines.

There are two options for the failure of the rocket before ignition. One is that there is a long time before the ignition and takeoff, and the failure is extremely dangerous, and there is a long time of redundancy. Then the astronauts are told to leave the spacecraft by themselves and take the explosion-proof elevator of the launch tower. To the underground bunker.

Zero-altitude escape life-saving flight test of escape aircraft

The other is that when the risk issue is about to happen, the escape vehicle is activated to take the spacecraft away from the dangerous area. It can push the spacecraft to an airspace with a height of more than 1,300 meters and a horizontal distance of about 850 meters.

The Long March 2F rocket + spacecraft combination has the ability to escape from zero altitude to orbit. The escape system mainly has three working modes, namely Escape with tower, escape at high altitude without tower (120 seconds after ignition to before the separation of the fairing), rescue outside the atmosphere , The first two modes rely on the escape aircraft to execute, the last one relies on the Shenzhou spacecraft to save itself.

Long March 2F take-off thrust is about 604 tons

The escape aircraft is composed of an escape tower, an upper fairing, a high-altitude escape power system, a grid wing, a supporting structure, and a fire extinguishing device.

Escape aircraft marking

The tower escape mode is suitable for 15 minutes before takeoff to 120 seconds after takeoff, and the altitude covers the altitude from zero altitude to about 40 kilometers. Once the fault detection system detects a high-risk fault, it will immediately issue an escape command. Then the upper and lower parts of the fairing, as well as the separation surface formed by the spacecraft return cabin and the service cabin are unlocked, and the escape tower activates the main engine to separate the entire escape aircraft from the rocket. At the same time, the attitude control engine works to deflect the flight angle of the escape aircraft, and then leaves the danger zone. After entering the safe airspace, the engine is separated and the return cabin is separated.

Then the return cabin establishes a landing attitude, goes through the parachute deceleration, throws the outsole, buffers the engine ignition, and then softly lands on the ground to achieve a safe return.

The escape tower separates 120 seconds after the rocket ignites and takes off. What happens after that?At that time, the tower-less escape mode of the escape vehicle will play a role , The outer edge of the upper fairing of the rocket is equipped with a high-altitude escape engine and a high-altitude separation engine. The escape process is similar to the escape with a tower.

High altitude escape engine

The escape tower and the high-altitude escape system seem to be repeated construction, but they are not. The medium and low altitudes below 40 kilometers have high atmospheric density and high flight resistance, requiring large thrust to escape power, and escape towers can play a role.

If you enter the high altitude for more than 40 kilometers, the atmospheric density is low. At this time, you don’t need a large thrust to escape. If you continue to use the escape tower, there will be two problems. One is that the dead weight of the escape tower will reduce the rocket’s capacity, and the other is that the thin atmosphere weakens. The aerodynamic stabilizing torque of the escape tower, and the eccentric thrust of the main engine will cause the escape aircraft to instability, so different thrusts need to be set for different working conditions in the middle and low altitudes and high altitudes.

Long March 2F Yaoxi Rocket Escape Tower Separated

The fairing will be thrown away about 200 seconds after takeoff, which also means that all escaped aircraft will be thrown away, and the safety guarantee will enter the self-rescue mode of the spacecraft.

If there is a danger in the atmosphere, the ship’s arrow will immediately separate. At this time, the spacecraft has two options. If the flight altitude is not high enough to enter orbit, the three major compartments of the spacecraft will be separated in pairs, and the return cabin will return to the ground according to the established process. If the flight altitude is sufficient at this time, the spacecraft will start the orbital module orbital control engine to raise the orbit and enter the low-earth orbit around the earth, and then choose the opportunity to separate and return to the ground.

Shenzhou spacecraft orbit control engine

In recent years, a kind of “Push Escape” The escape method shows a more efficient escape ability. It can realize the full safety guarantee of the spacecraft from zero height to the separation of the ship and arrow, and the spacecraft does not need a fairing, which further improves the safety. In fact, this is a variant of the high-altitude escape power system arranged by the Long March 2F rocket fairing. Increasing its thrust can adapt to the mid-to-low-altitude escape mission and achieve full coverage. my country’s new generation of manned spacecraft is also expected to use push escape systems.

The new generation of manned spacecraft also plans to use push escape schemes

Public opinion is having a lot of opinions about the regulations related to advertising activities in the press mentioned in Decree 38. Illustration .PV: Dear Director, there are many opinions about the regulations related to advertising activities in the press mentioned in Decree 38, which will take effect on June 1. In particular, the main contents of interest are related to advertising activities on electronic newspapers. Could you tell me more specifically about the current regulations on advertising on electronic newspapers that are being applied? – Director of Ninh Thi Thu Huong: According to the Law on Press, e-newspaper is a type of press using writing, images, and sound, which is transmitted on the network environment, including electronic newspapers and electronic magazines (Clause 6, Article 3). . Electronic newspapers and other types of newspapers may publish and broadcast advertisements. However, the posting and broadcasting of advertisements must comply with the provisions of the Press Law and the provisions of the law on advertising (Article 44 of the Press Law). Accordingly, the Law on Advertising has specific and separate regulations for each type of press, suitable to the nature, functions and characteristics of each type, especially regulations on content and area. , duration, ad rate. For example, for printed newspapers, the advertising area must not exceed 15% of the total area of ​​a newspaper publication or 20% of the total area of ​​a magazine publication, except for newspapers and magazines specialized in advertising; and must have signs to distinguish advertising from other contents (Clause 1, Article 22 of the Law on Advertising). For audio and video newspapers, Article 22 of the Law on Advertising stipulates: the advertising duration must not exceed 10% of the total duration of the broadcast program per day, except for the advertising duration on channels and programs specialized in advertising; must have signs to distinguish advertising contents; regulations on programs not to broadcast advertising; regulations on the number of breaks, the time of advertising in feature films, entertainment programs, regulations on the position and area of ​​advertising in the form of running words or a series of moving images close to the bottom of the screen. For electronic newspapers, Clause 1, Article 23 of the Law on Advertising stipulates that advertisements on electronic newspapers must: Do not design, arrange advertising parts mixed with news content; For ads that are not in a fixed area, it must be designed so that readers can actively turn off or open the ad, the maximum waiting time to turn off or open the ad is 1.5 seconds. Thus, according to the above regulations, the e-newspaper is arranged to advertise in a fixed, separate area, not mixed with the news content. For this ad, there is no restriction on the length of the ad nor is it designed so that readers can actively turn on or off the ad. But for ads that are not in a fixed area, it must be designed so that readers can actively turn off or open the ad, the maximum waiting time to turn off or open the ad is 1.5 seconds. .Many opinions believe that the regulation of the on and off time of advertisements not in a fixed area of ​​the electronic newspaper is 1.5 seconds too strict, reducing advertising revenue and affecting the development of the newspaper. electronic? What is your opinion about these comments? – The purpose of this regulation is to protect viewers because the press is an information product about events and issues in social life. Readers when viewing newspapers are always serious in receiving information. Therefore, all types of newspapers have regulations on fixed areas (space, duration) dedicated to advertising, but regulations on advertising that are not in fixed areas will not be available in print or print newspapers. Let’s try to imagine a news program on television or an editorial in a print newspaper with advertising images covering the whole frame, how will viewers react? Director of the Department of Grassroots Culture Ninh Thi Thu Huong Regulations for online newspapers are still allowed to advertise not in fixed areas, but must “Make sure to design so that readers can actively turn on or off ads. The maximum time to turn off or open the ad is 1.5 seconds. Please note here must be very careful from “active”, Because it’s the reader’s right. If they are watching important news, they can immediately turn off the ad so it doesn’t affect them, if they don’t want to turn it off, the ad can continue to play without time control. Therefore, it can be seen that this regulation does not limit advertising activities of electronic newspapers, but only meets two requirements of viewers: one is to have a key to turn off (on); Second, if there is an on or off operation, they must respond immediately within 1.5 seconds, to avoid the case that readers have to watch ads that are forced, inhibiting, and cannot fully and continuously view information. that they want to receive. .Compared between Decree 38 and Decree 158/2013/ND-CP (Decree 158), regulations on violations for advertising not in fixed areas on electronic newspapers, there is no difference. Thus, the regulation on “turning off and on after 1.5 seconds” was not issued until Decree 38? – Right. Clause 3, Article 55 of Decree 158 stipulates: A fine ranging from VND 10,000,000 to VND 15,000,000 shall be imposed for one of the following acts: Failing to design so that readers can actively turn off or open advertisements not in a fixed area; The timeout to turn off or open the ad not in a fixed area exceeds 1.5 seconds. Until Decree 38, Clause 2, Article 38 also stipulates: A fine ranging from VND 10,000,000 to VND 15,000,000 shall be imposed for one of the following acts: Failing to design so that readers can actively turn off or open advertisements not in a fixed area; Waiting time to turn off or open ads not in a fixed area exceeds 1.5 seconds; Design and layout the ad mixed into the news and article content. Thus, the handling of violations against regulations on advertising not in fixed areas has been regulated since 2013 in Decree 158, not until Decree 38 was issued. It can be seen that the handling of the above behavior in the two Decrees is the same, there is no change. Decree 158 and Decree 38 are documents under the Law, on subjects, acts and sanctioning levels are consistent with the provisions of the Law on Advertising and the Law on Handling of Administrative Violations. . So, according to the provisions of Article 23 of the Law on Advertising and Clause 2, Article 38 of Decree 38, specifically, how will the act of advertising on an e-newspaper be sanctioned, ma’am? Director General Ninh Thi Thu Huong: In fact, according to the feedback of readers and the monitoring and inspection process of the management agency, the act of advertising that is not in a fixed area of ​​the electronic newspaper will be sanctioned if it does not meet two requirements: Not necessary. design keys to be able to actively turn off (on) ads; When there is an operation to turn on or off but the off (on) time is not guaranteed to be 1.5 seconds. Of course, in the processing process, it will have to take into account the speed of the transmission, the quality of the data network access to measure the time and consider whether the behavior is intentional or due to the objective factors of the electronic press agency to consider. , handle accordingly. . Along with concerns about advertising revenue of electronic newspapers will be narrower, many other opinions also wonder about social networking platforms such as Youtube, Google … are not regulated by this regulation? Could you please share your views on these concerns? Director General Ninh Thi Thu Huong: We must clearly recognize that the press in general and the electronic press in particular is an essential means of information for social life; is the mouthpiece of the Party, the State, socio-political organizations, socio-political-professional organizations, social organizations, socio-professional organizations; is a forum for the people according to the provisions of the Press Law. With such an important role, it is necessary to have separate regulations on advertising for each type of press, in accordance with the functions, structure, principles and operational purposes of the press agency. Social networking platforms such as Youtube, Google … are currently thriving, occupying a large advertising market share, but these platforms are not press agencies, operating criteria as well as participants. , the interaction is also different. On the other hand, the operation of social networking sites is governed by a system of regulations on management, provision and use of Internet services and information on the network. Therefore, the regulation and application to advertising activities on social networks is not the same as that of the press agency, but it must still aim at ensuring the truthfulness and accuracy of information, protecting the interests of the media. to the recipient, without causing harm to national security, social order and safety in accordance with the Law on Advertising. .Can you tell me that in the near future, the solutions will be strengthened by the Ministry of Culture, Sports and Tourism to further improve the efficiency of state management of advertising activities, especially the efficiency of the enforcement of legal documents. related? – There will be many enhanced solutions, of which the first solution is to continue to propagate and disseminate to relevant organizations in order to agree on awareness to strictly enforce the provisions of the law on advertising. . In 2022, the Ministry of Culture, Sports and Tourism will conduct a review of 10 years of implementation of the Law on Advertising and guiding documents in order to grasp changes in advertising activities, new means and methods of advertising, from which to make recommendations. , propose amendments to the regulations in line with reality. The Ministry of Culture, Sports and Tourism will also strengthen coordination with relevant ministries and branches to amend and complete the legal framework for advertising activities as well as in coordination in inspection, examination and timely handling of illegal acts. violate the law on advertising. At the same time, the Ministry will also conduct training activities to improve professional expertise and state management skills in advertising for cadres and civil servants from central to local levels. . Thank you very much, Chief! “… The current regulation for online newspapers is that advertising is still not allowed in fixed areas, but it must be designed so that readers can actively turn on or off ads. The maximum time to turn off or open the ad is 1.5 seconds. Please note here that the word “active” must be very careful, because that is the right of the reader. If they are watching important news, they can immediately turn off the ad so it won’t affect, if they don’t want to turn it off, the ad can continue to play without time control … “. TOLD HIM (perform)

The entire NASA Jet Propulsion Laboratory (JPL) in the state of California burst out loud, clapping. After more than 10 days of delay, the Ingenuity helicopter weighing only 1.8 kg, worth $ 85 million of NASA, took off successfully on Mars. This victory is likened to NASA as the living moment of the Wright brothers (USA) who successfully made the first flight on Earth in 1903. NASA’s Jet Propulsion Laboratory (JPL) tweeted immediately after Ingenuity’s success: “Perseverance has brought us to Mars. And Ingenuity takes us higher.” “. NASA’s Mission Control Room at (JPL) received a 14-minute delay in success signal because of a distance of 289 million kilometers from Mars. Photo: NASA The moment in which the Mission Control room was delighted to hear that Ingenuity had successfully flown on Mars. Photo: Reuters “Now, 118 years after the Wright brothers successfully made the first flight on our planet in the 20th century, the Ingenuity helicopter has succeeded in performing this amazing feat in the world. another – the Red Planet – in the 21st century “- NASA Deputy Science Director Thomas Zurbuchen said. At a distance of 289 million km (from Earth to Mars), the Ingenuity Mars helicopter has done a miracle, unprecedented in history: Automatically refuel from the Sun, automatically fly to a maximum prescribed height of 3 meters and maintain that altitude stable for 30 seconds, then a gentle landing on the surface of the Red Planet. The whole process took 39.1 seconds. 39.1 seconds is only two-thirds of the time of a minute. The time is extremely short but is a wonderful fruit for the efforts of thousands of minds to contribute to Mars Mission 2020 of NASA. It took NASA nearly a decade to prepare for this feat. SURVIVAL WITH SUCKS Dr. Daniel Brown, an astronomy expert at Nottingham Trent University (UK), described sending something flying to Mars as a ‘staggering feat’. The biggest challenge of the Ingenuity engineering team is the flying environment on Mars: – First money. So far, no one (human) has set foot on Mars. All scientists know is simulate that environment through data and images transmitted by NASA’s self-propelled explorer ship back to Earth. – Second, the Mars environment is known for its harshness: The difference in temperature between day and night can “kill” human machines, in particular, Ingenuity helicopters are too small, too light (this is required technical conditions for test flight). Not to mention, the Red Planet does not have a magnetic field, the gravity one third that of Earth; and the atmosphere is extremely thin, only 1% of the pressure on the surface of our planet. Basic construction of the Mars Ingenuity helicopter. Photo of Vietnameseization: Trang Ly / Trang Dinh [Đọc thêm về cấu tạo của trực thăng Ingenuity: ‘Mổ xẻ’ trực thăng 85 triệu USD đang ‘sống tốt’ trên sao Hỏa: Sáng tạo khoa học táo bạo bậc nhất của Mỹ!] This means that in order to fly, the helicopter must be super light and turn its wings extremely fast to gain lift. Therefore, the blades of Ingenuity reach 2,500 rpm. Each propeller on the Ingenuity is made of a 57-gram composite material that powers a chopper body the size of a tissue box! OPEN THE WAY TO DISCOVER THE NEW SKY To further mark the link between the Martian Ingenuity helicopter and the Wright brothers ‘maiden flight, NASA confirmed it had named the first Mars airport (where the Ingenuity helicopter took off) as’ Wright Brothers. Field ‘. “We don’t know exactly where Ingenuity will lead us, but today’s results show that the sky – at least on Mars – may not be the limit,” said NASA Administrator Steve Jurczyk. . Just as the Wright Brothers’ flight ushered in human exploration of the sky on Earth, Ingenuity’s mission has sparked a new wave of exciting projects, poised to take the discovery of distant world to a new level. In 2027, NASA plans to launch Dragonfly mission his highly anticipated, in which a helicopter will fly over the sky of Saturn’s moon Titan. Other missions to explore distant atmospheres – such as Venus’s cloud survey mission – may soon emerge. THE MISSION OF INGENUITY NOT STOP HERE … The NASA team plans to have Ingenuity more test flights in the next few days, with up to five bolder flights over the next 30 days assuming each is successful. NASA’s Ingenuity Mars helicopter captured this scene as it hovered over the Martian surface on April 19, 2021, during its first controlled, powered flight. another planet. It uses the navigation camera, which automatically tracks the ground during flight. Source: NASA / JPL-Caltech After its first flight, the Ingenuity helicopter sent the Mars Perseverance self-propelled explorer technical data on what it had done, including a single black-and-white photo from a ground-facing camera and information. that was transmitted back to Earth. The Ingenuity helicopter that was traveling to Mars, attached to the underside of Perseverance, touched down on February 18, 2021 as part of a mission to look for signs of extraterrestrial life. Refer: NASA, Popularmechanics, DM

Her technique of turning greasy sensuality into mature and sexy is worthy of everyone’s attention, and the way she can make her figure more graceful by dressing up is also worth learning.

As a typical middle-aged person with a blessing, Sophia did not give up on herself, but changed the overall style through a few inconspicuous items.

The pure white hollow T-shirt is worn with sky blue high-waisted skinny jeans. The elegant color does not shrink the figure. On the contrary, because it is combined with the slim fit, it perfectly presents a pair of plump sexy and sexy. Refreshing and relieving styling, with self-cultivation type as the base, single product color as embellishment, strong practicality.

Sophia’s outfit reminds us that middle-aged women shouldn’t give up tight-fitting items even if their bodies are full and blessed., Because this is the only way to restrain the flesh and make the whole neat and capable.

It is also the only one that can break the law that fat people can only wear dark items. It is very worthy of your study and reference.

Another point is that everyone needs to pay more attention to the selection, because only the small details can make the overall look plump but not greasy. Sophia’s attainments on this point have reached the pinnacle.

She is very good at using the small waist design, such as this floral T-shirt, with a loose body and a wide waist design. Under the background of the plump career line, the waist becomes an ant waist in seconds, giving a pear-shaped figure instantly It has become a perfect figure with wide shoulders, thin waist and long legs.

In summary, you will find that Sophia’s choice of tops and T-shirts has these characteristics:First, the overall version must be slim or tight-fitting; second, the length of the single product must be a short but not crotch design;

Third, the T-shirt body has a very strong sense of design, and the details are handled properly; fourth, the bottoms that match the T-shirt must have a tight-fitting nine-point design, and the upper and lower styles are unified, which can ensure the body shape and set off. The graceful birth shape, kill two birds with one stone.

If you want to turn a voluptuous figure without contours into a sexy, plump and feminine figure, you should pay special attention to the following three parts when choosing a dress.

The first is the collar. A suitable collar style can not only make your face three-dimensional and exquisite, but also show a superior neck-to-shoulder ratio and a proud career line. If you have a long face, I suggest you choose a right-angle collar, but if you It is a square face, I suggest you choose a deep V collar.

The second is the waist line. In order to use the chest line to bring out a small waist, the skirt must have a certain uniqueness. When choosing a style, you can deliberately choose a dress style with elastic waist.

If you don’t have the style you like, you can also choose to match it with a belt to get a waistband effect. Another point to remind is that whether it is an elastic waistband or another waistband, the position on the skirt body must be below the chest, because only in this way, the height will not be suppressed.

The third point is the length of the skirt, which is very important for girls who are slightly fat and short. If you have not realized this so far, you must have stepped on a lot of dressing and dressing in the past. mine.

For small girls, the length of the skirt is the most secure around the knee, It not only retains the light effect without suppressing the height, but also shows its dignified and elegant temperament.

Finally, summarize the characteristics of Sophia’s dress selection. The first is that the collar should perfectly fit her face and body shape, and she should know how to change from time to time. If you like conservative styles, you can also choose high-necked styles.

The second is that the body of the body must be slim and contoured. Replace the light effect with a concave and convex body shape to make a profit without loss. Third, the length of the skirt must be moderate. If there are too many knees, just choose the split style. Tight skirts replace straight skirts.

Disclaimer: Edit Xiaomi, original text, image source network, if there is any infringement, please contact to delete.

It is certainly not unreasonable to have such doubts, but the Great Wall has Haval’s first love and launches Haval Red Rabbit. Naturally, it also makes sense, because Haval’s first love is more at home and pays more attention to practicality, while Haval Red Rabbit is more sporty and pays more attention to manipulation. The main target group is younger and more fashionable Gen Z users.

Therefore, it can be seen that Haval Chitu is positioned as a sports SUV. Its competitor is aimed at Changan UNI-T, and the test drive is chosen in Chang’an’s hometown, Chongqing, which is quite provocative, and it just happens to be UNI. -T I happened to have a test drive in Chongqing, so I can compare the different feelings of the two cars.

First of all, I want to talk about the test driving experience of Haval Chitu. Haval Chitu is equipped with Haval’s latest 1.5T engine code-named GW4B15C, with a maximum power of 135kW and a peak torque of 275N·m. The transmission system is matched with a set of self-developed 7-speed dual Clutch transmission.

In terms of power data, Haval Chitu is almost the same as Changan UNI-T. Chitu’s official acceleration from 100 km/h is 7.7 seconds, and the UNI-T’s 100 km/h acceleration is 7.6 seconds. The measured results of many media tests are about 9 seconds. In terms of experience, the Haval Chitu’s dynamic response is quite direct, especially the rapid acceleration in the front section. In the sports mode, the floor oil will ring when the tires start, which is in line with its sports SUV temperament.

The fast power is actually not what surprised me the most. The Haval Chitu’s chassis performance is even more surprising. The Chitu chassis uses a front MacPherson + rear multi-link suspension collocation, but it feels really tough. The full, high-speed cornering chassis is called a stable, and with the precise steering setting of the steering wheel, the SUV gives people the feeling of a small anti-aircraft gun.

Many SUVs of the same level also focus on sports, but most of them just look sporty in appearance and actually drive without any excitement. The suspension setting is still based on comfort. After all, they may also know that they only sell sporty shapes. , And in order to consider the comfort of the ride, they made compromises.

The Haval Chitu is one of the few SUVs that I have tested to drive through to the end, and it is also one of the few SUVs that allows people to drive very cool. Although the appearance of Chitu is not so aggressive, it is really sports. Achieved the ultimate that an SUV can do, with a compact chassis and fast power output. You can enjoy the thrill of splitting on the mountain roads of Tieshanping Forest Park. As for the rear passengers? You just need to remind them to pull the handrails.

Haval Chitu provides four driving modes, including economy, standard, sports and snow mode. Although the frustrated models that have been tested before also have multiple mode options, most of them are not much different. The so-called sports mode is nothing more than pulling. The high-speed delayed gear shifting time is not much different from the other modes of Haval Chitu, but in the sports mode, it feels like a different car, and the power output is like a young guy after the first girlfriend.

Of course, Haval Chitu has not achieved perfect control in terms of control. If you have to pick up some problems, then the power output is not linear enough, especially when running out of a corner, the throttle is not responding at all, giving it a fierce one. Jump, there is no excessive in the middle. People who are new to this car need some time to adapt, but even if I drove it for a day, it is more difficult to drive it smoothly, especially when traffic jams need to start frequently and then stop. Car environment.

The problem of turbo lag in turbocharged models is a purely common problem with models with T. You can’t say good or bad. Smart depends on whether you like it or not. Some people like the sudden burst of turbocharged models. It feels instantaneous, and some like the gradual progress of natural inhalation.

Compared with Changan UNI-T, in terms of driving pleasure alone, Haval Chitu is more than a little bit stronger than Changan UNI-T, and it really implements the two words of sports. In addition to UNI-T, there is something more sporty than Chitu. Appearance, in terms of driving pleasure, I’m really sorry for the word sport.

In terms of appearance, I think the UNI-T is more radical and recognizable. The Haval Chitu is more regular. In terms of body height, the Chitu has some advantages. That is because the Haval Chitu does not adopt a fast-back design, but is only made on the rear wing. I have written some articles, which can better protect the rear head space and enhance the practicality. Although the UNI-T’s slip-back design is good-looking, it is at the expense of rear head space.

As for the interior and configuration of the Haval Chitu, the workmanship of the interior is pretty good. The color matching and the addition of colored trim make the car look less dull. The riding space and storage space are quite satisfactory, and you can imagine the configuration. Almost all configurations are available, similar to competing models, each with its own characteristics.

If you are tired of all kinds of SUV models that are popular in the middle of the road, and like more pure driving pleasure and hope for some practicality, a sports SUV like Haval Chitu will be a more suitable choice for you. It can be done by yourself. Have fun, of course, when your wife and children are in the back row, please restrain yourself, otherwise you may be asked to change cars.

Xiaomi will conduct a 24/7 non-stop “abuse” live broadcast, which will be officially launched at 8 o’clock this evening.

The protagonist of this live broadcast is the flagship of the MIX FOLD folding screen. Xiaomi will carry out a 24-hour uninterrupted, 7-day continuous test with a folding screen every 1.6 seconds, challenging the 10-year service life.

It is reported that Lei Jun once introduced at the press conference that the hinge design of Xiaomi MIX FOLD is very precise and strong.Passed the reliability test of 200,000 times of bending, the limit of folding times can reach 1 million times,At the same time, the weight is reduced by 27% compared to traditional hinges, and the back of the screen is covered with non-magnetic high-strength steel sheets, making the screen flatter and tougher.

The live test also showed that Xiaomi has full confidence in the quality of the MIX FOLD folding screen.

It is worth mentioning that, as Xiaomi’s first folding screen flagship, Xiaomi MIX FOLD will also usher in the first batch of sales at 10 o’clock tomorrow morning, starting at 9,999 yuan, which is currently the cheapest folding screen flagship phone on the market.

Simultaneously,MIX FOLD is also the embodiment of Xiaomi’s high-end technical strength. It not only has top performance, is equipped with the Snapdragon 888+LPDDR5+UFS 3.1 performance iron triangle solution, but also has a 2K resolution folding screen, supports HDR10+, Dolby Vision, etc.,Can bring extremely shocking visual experience.

MIX FOLD launched the world’s first liquid lens technology,Bionic technology is used to insert the “lens” into the lens of a mobile phone, which brings about a change in focal length and focus similar to that of the human eye. A single lens can achieve both telephoto and macro functions at the same time.

It is worth mentioning that,MIX FOLD also released the surging C1 ISP chip developed by Xiaomi for the first time.With dual filter configuration, high and low frequency signals can be processed in parallel, and the signal processing efficiency is increased by 100%. With self-developed algorithms, it can effectively improve the image effect.

Gypsum is a substance whose main component is calcium sulphate which contains many heavy metal metals such as lead, cadmium, … which are dangerous to health. However, due to its fast-setting properties (often used in construction), the price is cheap, only about VND 60,000 for 40 kg, so it is very popular with manufacturers.

Illustration.

According to the traditional way of making tofu, often using sour vinegar or manually fermented tofu itself will produce a little amount of scum and is quite time-consuming and unprofitable for the producer. As for plaster, the scum will float faster, precipitate faster, double the amount of scum and make it possible to use less beans to make much more profit. Thus, the bargain from using gypsum to make tofu has made production establishments blurred.

Delicious and safe tofu

First, a piece of delicious tofu is usually ivory-white, very soft.

Second, the characteristic aroma and fatty taste of soybeans, like when eating whey, will prove that it is quality tofu, safe for people to eat.

Tofu mixed with plaster

Due to being mixed with gypsum, it is certain that the taste of tofu will be markedly different, in particular, the taste is slightly acrid, holding heavy hands than the weight before mixing it.

In addition, the tofu with tofu is usually yellowish, the more yellow you can confirm the more plaster of the tofu. At the same time, the hardness and firmness of the “witty” tofu is twice that of the normal fresh tofu.

Hopefully these sharing will help you choose a quality tofu piece for processing delicious dishes, everyone who eats it will also commend it!