Xinhua selects China pictures of the year 2019

      Source: Xinhua| 2020-01-05 17:27:48|Editor: huaxia
      Video PlayerClose
      ?
      ?
      XINHUA-PICTURES OF THE YEAR 2019

      A staff member conducts maintenance of the reflector panels on the Five-hundred-meter Aperture Spherical Radio Telescope (FAST) with the help of a microgravity mechanism in Pingtang County, southwest China's Guizhou Province, Aug. 30, 2019. Researchers with the China-based FAST, the world's largest single-dish radio telescope, tested a microgravity mechanism in the maintenance of the telescope's 4,450-panel reflector on Aug. 30, 2019. The micro-G mechanism aims to help reduce the maintenance staff's body weight to a value within the reflector panels' range of durability using a helium-filled balloon 7.6 meters in diameter. (Xinhua/Ou Dongqu)

      KEY WORDS:
      010020070750000000000000011100001386797291
      主站蜘蛛池模板: 99国产小视频| 亚洲AV无码专区在线观看亚| 调教女m视频免费区| 在线日本中文字幕| 丰满人妻一区二区三区免费视频| 欧美日本视频在线观看| 北条麻妃在线一区二区| 麻豆自创视频在线观看| 国产高清视频网站| 一本高清在线视频| 日韩福利电影网| 亚洲欧洲日产国码AV系列天堂| 精品国产v无码大片在线观看 | 天堂mv在线免费看| 中文精品字幕电影在线播放视频| 欧美a在线视频| 亚洲综合五月天欧美| 美女尿口18以下禁止观看免费| 国产成人综合日韩精品婷婷九月 | 欧美性xxxxx极品娇小| 免费看欧美一级特黄a大片| 被夫上司持续入侵大桥未久| 国产精品jizz在线观看老狼| 99久久精品免费看国产一区二区三区 | fuqer2018| 成在线人AV免费无码高潮喷水| 久精品国产欧美亚洲色aⅴ大片| 欧美精品中文字幕亚洲专区| 免费国产黄网站在线观看视频| 肉伦迎合下种怀孕| 国产后入又长又硬| h片在线观看免费| 欧美精品中文字幕亚洲专区| 午夜精品不卡电影在线观看| 麻豆自创视频在线观看| 国产精品国产免费无码专区不卡 | 小四郎在线观看| 久久久久999| 日韩高清电影在线观看| 亚洲图片小说区| 波多野结衣看片|