日批在线视频_内射毛片内射国产夫妻_亚洲三级小视频_在线观看亚洲大片短视频_女性向h片资源在线观看_亚洲最大网

USEUROPEAFRICAASIA 中文雙語Fran?ais
China
Home / China / Top Stories

Tianzhou 1 completes historic refueling of orbiting lab

By Xin Dingding | China Daily | Updated: 2017-04-28 07:41

 Tianzhou 1 completes historic refueling of orbiting lab

China's first cargo spacecraft Tianzhou 1 completes its first fuel resupply test with the Tiangong II space lab at 7:07 pm on Thursday in this simulated image.Screenshot From Cctv

Tianzhou 1, China's first cargo spacecraft, has completed the country's first in-orbit refueling test with the unmanned Tiangong II space laboratory, the China Manned Space Agency said on Thursday.

Zhang Youxia, commander-in-chief of China's manned space program, called the Tianzhou 1 mission a success.

The space agency said in a news release the refueling test was a major technology breakthrough and has paved the way for China to assemble and operate a space station.

The agency also said China has become the third nation to complete in-orbit refueling technology, following Russia and the United States.

As the first of the planned three in-orbit refueling tests for Tianzhou 1, it took five days and wrapped up at 7:07 pm on Thursday.

Pang Zhihao, executive editor-in-chief of Space International magazine, said the refueling demands designers to add pipelines in the spacecraft's docking adapter and create a difference in pressure in fuel tanks of both spacecraft to transfer the fuel.

"Making sure there is no leakage of fuel is crucial," he said.

The agency said that after the first test, the two spacecraft will stay connected as they orbit Earth for about two months, and the second in-orbit refueling test will be conducted in the latter part of June.

After that, the two spacecraft will undock, and the cargo vessel will make sophisticated, automated maneuvers to circle the space lab and docking with the lab at a different site.

The two spacecraft will then fly independently about three months, and near the end of that period they will dock for a third time - a fast docking maneuver that is expected to be completed in six hours, compared with at two or more days for a typical docking - and carry out the third refueling test.

Eventually, the cargo vessel will be directed by ground control to plunge back to Earth.

The Tianzhou 1, the country's largest and heaviest spacecraft, was launched at the Wenchang Space Launch Center in Hainan province on April 20.Tiangong II has been in space since mid-September and carried two Chinese astronauts from mid-October to mid-November. It is now unmanned.

China plans to start construction of a space station around 2018 and complete it by around 2022, according to the manned space agency.

xindingding@chinadaily.com.cn

 

Editor's picks
Copyright 1995 - . All rights reserved. The content (including but not limited to text, photo, multimedia information, etc) published in this site belongs to China Daily Information Co (CDIC). Without written authorization from CDIC, such content shall not be republished or used in any form. Note: Browsers with 1024*768 or higher resolution are suggested for this site.
License for publishing multimedia online 0108263

Registration Number: 130349
FOLLOW US
主站蜘蛛池模板: 亚洲日本香蕉视频 | 最新国产在线视频 | 欧美天堂 | 色综合天天综合网天天狠天天 | av中文字幕观看 | 亚洲自拍偷拍视频 | 国产永久免费视频 | 91精品在线播放 | 免费在线播放av | 久久久久综合 | 日本亚洲一区二区三区 | 一级黄色网址 | 国产一区精品视频 | 欧美亚洲精品在线 | 色七七影院 | 日韩久久一区二区三区 | 久操视频免费 | 天天操导航 | 亚洲观看黄色网 | 午夜影院黄色片 | 亚洲一区二区三区免费在线观看 | 日韩五码在线 | 色播五月激情 | 国产一区二区不卡在线 | 欧美一区二区三区四 | 日韩不卡一区 | 精品国产一区在线观看 | 自拍三区 | 亚洲精品影片 | 久久久成人精品视频 | 98av| 国产小视频你懂的 | 日韩天堂在线 | 精品日韩在线观看 | 午夜精品久久久久久久久久久久 | 亚洲视频免费播放 | 成人免费一区 | 国产欧美在线 | 亚洲伦理一区二区三区 | 五月天综合网站 | www.99re6|