国内精品一区二区三区最新_不卡一区二区在线_另类重口100页在线播放_精品中文字幕一区在线

--- SEARCH ---
WEATHER
CHINA
INTERNATIONAL
BUSINESS
CULTURE
GOVERNMENT
SCI-TECH
ENVIRONMENT
LIFE
PEOPLE
TRAVEL
WEEKLY REVIEW
Learning Chinese
Learn to Cook Chinese Dishes
Exchange Rates
Hotel Service


Hot Links
China Development Gateway
Chinese Embassies

Space Scientists over the Moon
Yuan Jiajun could never have dreamed 30 years ago while sitting on his father's shoulders star-gazing that he would grow up to become chief director of China's manned spacecraft system.

He no longer stared into the heavens looking for Dongfanghong - the first Chinese-made satellite, which went into orbit in 1970 - while singing "The East is Red" (whose Chinese title is also the name of the satellite).

Now, 40-year-old Yuan is busy preparing to blast China's first astronauts into space.

Yuan's preparations are on solid shoulders.

On January 5, Yuan and his colleagues successfully guided China's latest unmanned spacecraft - Shenzhou IV - to a safe landing in North China's Inner Mongolia.

It was the fourth consecutive triumph China had chalked up since 1999, when it catapulted its first unpiloted Shenzhou - "Divine Vessel" in Chinese - into space.

Yuan's boss, Hu Shixiang, a chief of China's manned space programme, pointed out that Shenzhou IV was proof that China's expertise on manned flights had matured.

It is just a "matter of time" before the country stages manned missions, Hu said.

Many perceive the success to be symptomatic of China's progress after two decades of economic reform.

For Yuan, who graduated with a master's degree in aircraft design at the China Academy of Space Technology in 1987, the mission was just another step in China's push to become a spacefaring nation.

Quest for space

Chinese people have long aspired to travel in space.

Many space museums throughout the world mention either Chinese legends about Chang'e, a young fairy who flew to the moon, or about Wan Hu, the first man believed to have blasted off 500 years ago by sitting on a chair rigged with two kites and 47 rockets.

China invented the gunpowder "rocket" - the precursor of modern space rockets - so it surely does not want to fall farther behind as space technology leaps forward in developed countries, according to Chinese space researchers.

"Space technology has opened up a new era for human exploration of outer space," Yuan said. "Humankind's activities in space will greatly promote social progress and profoundly influence society."

It was with such understanding and a public vow to contribute to the peaceful use of outer space, China began its space programme.

It blasted its first artificial satellite - Dongfanghong ( "The East is Red") - into orbit in 1970.

But it was not until 1992 that China formally embarked on its manned space programme, said Yuan.

Between November 1999 and March 2002, the country launched three unmanned space flights.

By the time Shenzhou IV was launched on December 30 last year, China had developed the most complete system needed for a manned mission.

The Shenzhou IV craft embodied the country's most sophisticated and fullest preparations so far for getting Chinese astronauts into space, said Yuan.

Astronaut training

To become familiar with the space vessel, China's would-be astronauts used the Shenzhou IV capsule for training for a week last April, Yuan revealed.

Before that, a corps of 14 astronauts picked from among hundreds of fighter pilots in China's air force had been training for years to ready themselves for the first trek into space.

They have been dubbed "taikonauts" - the Chinese word for outer space being taikong - and have each flown more than 1,000 hours in fighter jets. Two were sent to Russia's cosmonaut school.

The height and weight of the pilots, who are all around 30 years, would surprise many people.

They are 1.7 meters tall and weigh 65 kilograms on average.

In the limited room of a space vessel, shorter men can manoeuvre more flexibly and it is more cost-effective because they weigh less, Chinese space experts said.

Even with their extensive training, Yuan did not feel the pressure ease from his shoulders.

But he need not worry as hundreds of Chinese scientists involved in the mammoth manned space programme have come to work alongside him.

In particular, they have focused on developing an innovative launch rocket and making Chinese spacecraft safe.

Absolute safety

Yuan and his colleagues said that, when it comes to launching a piloted mission, absolute safety is critical.

In his meeting with the astronauts being trained, Premier Zhu Rongji was quoted as assuring them that China's spacecraft could send them to space safely and bring them back equally safely.

Liu Zhu-sheng, chief designer of China's Long March 2F rocket, said his team had made the most complex arrangements to ensure the booster was highly reliable.

Between October 1996 and the end of 2002, the Long March rocket series had made 27 consecutive successful launches - including four for the unmanned Shenzhou flights, each time precisely lifting the payloads into pre-set orbits, Liu said.

But the previous achievements may not necessarily be a harbinger of subsequent triumph.

So, each time that the Long March 2F completed a mission, scientists would spare no effort to double-check major components and make improvements in safety and reliability.

Now, the rocket boasts 10 world-leading innovations and inventions, including the escape and fault-detecting and handling systems, which China independently developed to guarantee the safety of its astronauts, according to Liu.

For instance, at the top of the rocket is a kind of escape tower, which, in the event of an emergency, can lift the spacecraft below it in a split second to a safe landing field before the rocket explodes.

Further consideration

Rockets aside, when engineers design the spacecraft itself, they incorporate design features details to make astronauts safe and relatively comfortable during their flights.

For example, a special thermal protection shield is able to maintain a cool temperature inside the space vehicle.

The heat-resistant shield guarantees a temperature of below 30 degrees centigrade inside the capsule when the outside temperature soars to hundreds of degrees, scientists said.

The Shenzhou spacecraft being developed for manned flight will fly for at least one day in space, said Qi Faren, the 69-year-old general designer of the Shenzhou spacecraft.

Qi, who graduated from the Beijing University of Aeronautics and Astronautics in 1957, said this will be longer than the first manned flight of the former Soviet Union, which lasted for 108 minutes.

The spacecraft will accommodate three people, he added.

After the re-entry module of China's spacecraft returns to Earth, the remaining part of the craft - the orbital module - will be able to keep working in space as an independent satellite carrying out tasks such as observation work.

In addition, China has so far managed to spend less money than the United States - the second country after the former Soviet Union to put a human into space - on its manned space industry.

"For the whole of the manned space industry, we have only spent 19 billion yuan (US$2.3 billion), while the United States spent US$8 billion on just one rocket system," said Zhang Qingwei, president of the China Aerospace Science and Technology Corp, without specifying.

Yuan has every reason to believe that the country's dream of manned space flight will soon become reality.

At the end of that dream, there will be others - a space lab, space station and moon landing.

(China Daily January 16, 2003)

Shenzhou IV Flight Reaps Rich Scientific Fruits
China's Astronauts Ready for Space
Re-entry Module of Unmanned Spaceship Opened
Manned Spacecraft to Be Launched This Year
Fourth Unmanned Spacecraft Launched
Print This Page
|
Email This Page
About Us SiteMap Feedback
Copyright © China Internet Information Center. All Rights Reserved
E-mail: webmaster@china.org.cn Tel: 86-10-68326688
国内精品一区二区三区最新_不卡一区二区在线_另类重口100页在线播放_精品中文字幕一区在线
蜜桃视频在线一区| 蓝色福利精品导航| 一区二区三区四区激情| 亚洲日本在线视频观看| 一区二区三区久久久| 亚洲一级二级三级在线免费观看| 亚洲超丰满肉感bbw| 奇米四色…亚洲| 国产露脸91国语对白| 91丨porny丨最新| 欧美男同性恋视频网站| 久久综合视频网| 中文字幕中文在线不卡住| 亚洲自拍偷拍欧美| 久久精品国产第一区二区三区| 国产高清亚洲一区| 欧美在线你懂的| 久久免费午夜影院| 亚洲综合激情另类小说区| 精品写真视频在线观看| 色婷婷激情一区二区三区| 日韩无一区二区| 日韩美女视频19| 精品一区二区三区视频 | 国产精品一卡二| 99精品国产91久久久久久 | 高清国产一区二区三区| 在线免费精品视频| 欧美日本乱大交xxxxx| 日韩欧美综合一区| 中文字幕日本乱码精品影院| 丝袜美腿亚洲一区| 午夜精品久久久久影视| 伦理电影国产精品| 欧美综合亚洲图片综合区| 久久久午夜电影| 日韩精品一级中文字幕精品视频免费观看 | 91麻豆国产福利在线观看| 欧美日韩国产乱码电影| 国产精品毛片久久久久久久| 奇米影视7777精品一区二区| 91极品美女在线| 欧美韩日一区二区三区| 久久国产综合精品| 7777精品伊人久久久大香线蕉最新版| 国产精品久久久久久久久果冻传媒| 蜜桃传媒麻豆第一区在线观看| 在线观看91视频| 亚洲欧美电影一区二区| 成人免费精品视频| 久久精品在线观看| 麻豆成人久久精品二区三区小说| 欧美日韩一区久久| 亚洲国产综合色| 在线一区二区三区四区| 亚洲欧美电影院| 色综合天天综合色综合av | 国产蜜臀av在线一区二区三区| 麻豆国产精品777777在线| 欧美久久久久久久久中文字幕| 亚洲精品视频在线看| 91在线云播放| 一区二区三区在线观看国产| 91成人在线免费观看| 亚洲欧美一区二区不卡| 色系网站成人免费| 亚洲一二三区在线观看| 欧美日韩免费一区二区三区视频| 亚洲国产精品一区二区久久恐怖片 | 国产一区二区主播在线| 久久久久久久性| 成人午夜av电影| 亚洲欧美日韩在线播放| 欧洲日韩一区二区三区| 日韩精品一二区| 精品日韩在线一区| 国产成人福利片| 最新中文字幕一区二区三区| 欧美专区日韩专区| 青青草国产精品97视觉盛宴| 欧美tickling网站挠脚心| 高清国产一区二区三区| 最新久久zyz资源站| 欧美色图一区二区三区| 奇米色777欧美一区二区| 国产日韩欧美高清在线| 色乱码一区二区三区88| 麻豆中文一区二区| 国产精品人人做人人爽人人添| 色老头久久综合| 激情综合亚洲精品| 一区二区在线观看av| 日韩欧美国产系列| 99久久精品国产一区二区三区| 三级久久三级久久| 国产情人综合久久777777| 在线看国产一区二区| 久久99精品久久久久久国产越南 | 国产麻豆精品久久一二三| 18欧美乱大交hd1984| 欧美一级黄色片| 一本色道久久综合亚洲aⅴ蜜桃| 免费在线看一区| 中文字幕亚洲一区二区va在线| 91精品国产综合久久精品 | 欧美一区二区三区白人| 国产**成人网毛片九色| 日韩国产在线一| 1000部国产精品成人观看| 欧美岛国在线观看| 欧美色爱综合网| 国产成+人+日韩+欧美+亚洲| 视频在线观看一区| 亚洲乱码国产乱码精品精的特点 | 色嗨嗨av一区二区三区| 国产精品中文字幕一区二区三区| 亚洲在线成人精品| 国产精品久久久久一区二区三区共| 91精品国产一区二区三区蜜臀| 97精品国产露脸对白| 懂色中文一区二区在线播放| 免费成人在线网站| 一区二区三区欧美久久| 国产精品久久久久久户外露出| 精品国产精品一区二区夜夜嗨| 欧美日韩视频在线第一区| 91美女片黄在线| 91在线国内视频| 成人av在线一区二区三区| 狠狠色狠狠色综合| 久久精品久久99精品久久| 午夜精品一区二区三区三上悠亚| 亚洲欧美综合另类在线卡通| 国产欧美一区二区三区鸳鸯浴 | 中文字幕一区二区三区不卡| 国产日产欧美一区| 国产亚洲精品aa| 精品免费99久久| 精品国产青草久久久久福利| 日韩一级大片在线观看| 欧美一区二区国产| 精品美女在线播放| 亚洲私人黄色宅男| 一区二区不卡在线播放 | 欧美性大战xxxxx久久久| 色欧美日韩亚洲| 99久久99久久免费精品蜜臀| 色婷婷综合久久久久中文一区二区| thepron国产精品| www.亚洲国产| 色综合天天性综合| 一本大道久久a久久精品综合| 色婷婷综合激情| 欧美视频在线一区| 欧美一区永久视频免费观看| 日韩一区二区三区四区五区六区| 精品国产麻豆免费人成网站| 久久久激情视频| 国产精品日韩精品欧美在线| 亚洲女性喷水在线观看一区| 亚洲国产人成综合网站| 日本欧美韩国一区三区| 国产高清精品网站| 色偷偷久久人人79超碰人人澡| 91成人在线免费观看| 欧美一级二级三级乱码| 国产亚洲精品超碰| 亚洲精品视频免费观看| 奇米影视一区二区三区| 福利电影一区二区| 91国偷自产一区二区三区成为亚洲经典 | 蜜臀久久久久久久| 国产超碰在线一区| 欧美在线免费观看亚洲| 精品国精品国产| 亚洲天堂精品在线观看| 蜜臀va亚洲va欧美va天堂| av不卡免费在线观看| 欧美一级片在线观看| 色婷婷精品大视频在线蜜桃视频| 欧美性受xxxx黑人xyx性爽| 91精品国产综合久久久久| 国产欧美日韩亚州综合| 美女视频黄久久| 亚洲高清在线精品| 国产精品一区免费在线观看| 91色视频在线| 久久久久99精品国产片| 亚洲成人综合网站| 成人福利在线看| 欧美一区二区高清| 一区二区三区在线观看动漫 | 欧美综合一区二区三区| 久久精品亚洲麻豆av一区二区 | 日本电影亚洲天堂一区| 国产无一区二区| 蜜桃一区二区三区四区| 欧美综合一区二区三区| 国产精品免费观看视频| 精东粉嫩av免费一区二区三区|