单词：weight hourly space velocity
单词：weight hourly space velocity 相关文章
Scientists Deliberate Cleaning Space Junk WASHINGTON Everything that we launch into an orbit around the earth eventually becomes space debris. Scientists say the increasing number of unusable objects circling our planet is threatening functioning sat
VOA标准英语2014年(六月)
Broadcast: Feb 01, 2003 The U.S. Space Shuttle Columbia broke apart in mid-air Saturday minutes before it was to return to Earth. The U.S. space agency, 1) NASA, says none of the seven astronauts aboa
VOA2003（上）-科技先知
We have to beat that. 我们必须克服它。 We can do it because in space there are no aerodynamics. 我们能够这样做是因为太空里没有空气阻力。 We can go and use inflatable systems for almost everything. 我们几乎总是能够使
TED演讲商业篇
China has launched two satellites into space on a Long March carrier rocket from the Xichang Satellite Launch Center in Sichuan Province. The satellites are part of the country's growing BeiDou Navigation Satellite System. The launch of the Long Marc
2018CRI中国国际广播电台
Shenzhou-10 Spacecraft Returns to Earth The three astronauts aboard the Shenzhou-10 spacecraft have now come out of the return capsule. All appear to be in good physical condition and in good spirits. One of the astronauts, Nie Haisheng has set a rec
Hourly News 每小时新闻
Three astronaunts landed on earth safely The three astronauts aboard the Shenzhou-10 spacecraft have now set foot back on Earth after a 15-day mission in space and are in good physical condition and in good spirits. It is my second manned space missi
Hourly News 每小时新闻