1. <sub id="zy88n"></sub>
        1. <blockquote id="zy88n"></blockquote>
          欧美黑人又大又粗xxxxx,人人爽久久久噜人人看,扒开双腿吃奶呻吟做受视频,中国少妇人妻xxxxx,2021国产在线视频,日韩福利片午夜免费观着,特黄aaaaaaa片免费视频,亚洲综合日韩av在线

          China upgrades spacecraft reentry and descent technology

          Source: Xinhua| 2018-05-25 16:05:57|Editor: Xiang Bo
          Video PlayerClose

          BEIJING, May 25 (Xinhua) -- China has successfully tested its new space program's reentry and descent technology, which makes landing heavier spacecraft possible.

          Current spacecraft landing methods such as parachute and airbag landings can not satisfy the deceleration needs of heavier manned spacecraft reentry missions, according to China Aerospace Science and Technology Corporation (CASC).

          The CASC successfully conducted three experiments, involving upgraded parachute and airbag landing techniques as well as the inflatable reentry and descent technology (IRDT).

          It published the test results on its website earlier this week.

          The upgraded parachutes proved reliable with strong structure and performance and can be used to slow down a spacecraft at the initial stage of reentry.

          According to the test results, the upgraded airbag landing technology uses high-impact materials to cover spacecrafts during landing and can increase the current deceleration capacity.

          IRDT is a brand new integrated inflatable heat insulating deceleration system that CASC has deployed in experiments.

          Future recoverable capsules based on IRDT technology can land spacecraft without heat shields and parachutes.

          IRDT-based recoverable capsules will be able to provide buffer and protection to spacecraft when landing while inflating air bags which cover the spacecraft.

          The technology will be used in deep space exploration and the quick return of space stations, scientific experiment satellites and space freight, said the CASC.

          TOP STORIES
          EDITOR’S CHOICE
          MOST VIEWED
          EXPLORE XINHUANET
          010020070750000000000000011100001372061111
          主站蜘蛛池模板: 久久迷青品着产亚洲av网站| 国产亚洲av日韩精品熟女| 成人无码午夜在线观看| 国产精品玖玖玖在线| 亚洲av日韩片在线观看| 无码少妇精品一区二区免费| 亚洲国产精品成人AV在线| 亚洲国产一区在线二区三区| 国产在线视频www色| 中国特黄美女一级视频| guomoba国模吧大胆高清| 性开放的女人aaa片| 成人免费av在线播放| 99久久国产综合精品成人影院| 亚洲永久精品唐人导航网址| 国产精品有码无码AV在线播放| 亚洲人av高清无码| 国语做受对白XXXXX在线| 最新中文字幕av专区| 人人澡超碰碰97碰碰碰| 国产精品久久久久久2021| 中国chinese男男gay网站| 青青自拍三级视频一区| 成人性影院| 成人做爰高潮尖叫声免费观看| 婷婷综合缴情亚洲狠狠| 国产午夜无码专区喷水| 性做久久久久久久| 精品人妻1区2区3区| 中国内射xxxx6981少妇| 国产山东熟女48嗷嗷叫| 精品福利一区二区免费视频| 乌克兰少妇xxxx做受| 亚洲精品成人片在线观看精品字幕| 欧美成人精品三级在线观看| 婷婷看看精品一区二区三区 | 中文字幕久久波多野结衣| 台湾中文佬娱乐网| 漂亮的保姆hd完整版免费韩国| 亚洲成人动漫在线| 在线永久免费观看的毛片|