The science and technology of space flight.
航天学，宇宙航行学研究宇宙飞行的科学及技术
medical electronics of cosmonautics
宇宙航行医用电子学
Academia Internacional de Astonautica
国际宇宙航行科学院
CASI (Canadian Aeronautics and Space Institute)
加拿大宇宙航行研究所
the physiological effects of space travel
宇宙航行的生理影响.
International Astronautical Congress of IAF
宇航联合会国际宇宙航行大会
Institute of Space and Aeronautical Science
宇宙和航空科学研究所(宇航科研所)
To navigate a spacecraft, as in celestial flight.
导航为宇宙飞船导航，如在航天飞行中
An astronaut flies a spacecraft and a pilot flies an aeroplane.
宇航员驾驶宇宙飞船，飞行员驾驶飞机。
NASA is cutting short space walk today for Endeavor astronauts.
国家航空和宇宙航行局于今日缩短了宇航员太空行走的时间。
Do you know how an astronaut flies in a spacecraft?
你知道宇航员是怎样乘宇宙飞船飞行的吗?
a landing of a spacecraft in the sea at the end of a space flight.
航天飞行结束时宇宙飞船在海上着陆的行为。
You've heard of a smoking gun- this the squirting gun," said Kenneth Edgett of NASA contract firm Malin Space Science Systems in San Diego, California.
NASA（美国国家航空与宇宙航行局）科学今天宣布，在火星上有液态水流动的证据已经找到。
Agreement on the Rescue of Astronauts, the Return of Astronauts and the Return of Objects Launched into Outer Space
营救宇宙航行员、送回宇宙航行员和归还射入外层空间的物体的协定
Astronauts will live and do research work in it.
宇宙航行员将在里面生活和做研究工作。
In the case of astronautical endeavors the United States has made much progress.
就宇宙航行的努力来说，美国已取得了很大进步。
Estimated Cosmic Radiation Doses for Flight Personnel.
民航飞行人员宇宙辐射受照剂量的估算
NASA managers are sifting through a variety of options on where to land the Space Shuttle Discovery.
美国国家航空和宇宙航行局正在仔细筛选发现者宇宙飞船的着陆地点。