航天计划的长远前景尚未明朗。
The long-term future of the space programme hangs in the balance.
卫星是对航天飞机发展的阻碍。
我们在航天技术方面处于领先地位。
明年将有一个技术舱与航天站对接。
Next year, a technology module will be docked on the space station.
航天飞机发射前的倒计时已经开始。
The countdown has begun for the launch of the space shuttle.
航天飞机全体机务人员的使命基本完成。
The mission for the crew of the space shuttle is essentially over.
这架航天飞机昨日着陆。
亚特兰蒂斯号航天飞机今天安全返回地球。
这架航天飞机计划于04:38发射升空。
在军队的支持下，这项航天计划会继续进行。
The space programme will continue under the aegis of the armed forces.
这是地面指挥中心呼叫航天飞机“发现号”。
This is Mission Control calling the space shuttle Discovery.
这架航天飞机最早要到星期天才会发射升空。
The space shuttle won't lift off the launch pad until Sunday at the earliest.
哥伦比亚号航天飞机将在明天上午重进地球大气层。
The shuttle Columbia will re-enter Earth's atmosphere tomorrow morning.
航天飞机在为期10天的任务之后于今日平安返回。
The space shuttle returned safely today from a 10-day mission.
航天飞机重返地球大气层时因有摩擦力而减慢速度。
The force of friction slows the spacecraft down as it re-enters the earth's atmosphere.
美国航空航天工业遭到了一些强劲竞争产品的挑战。
The American aerospace industry has been challenged by some stiff competition.
从现在开始30年内，美国会把载人航天器送上火星。
In thirty years from now the United States should have a manned spacecraft on Mars.
定于今天上午哥伦比亚号航天飞机的发射已经被推迟了。
This morning's launch of the space shuttle Columbia has been delayed.
亚特兰蒂斯号航天飞机计划与俄罗斯的米尔号空间站对接。
The space shuttle Atlantis is scheduled to dock with Russia's Mir space station.
这架航天飞机已经停止了传输数据，这是这次任务中一个十分严重的反常现象。
The space shuttle had stopped transmitting data, a very serious anomaly for the mission.
通过制定一套规范来垄断航天工业。
这里的航空航天工程系太棒了！
这架航天飞机将于明天起飞。
太空产业化的关键是美国的航天飞机。
The key to the industrialization of space is the U.S. space shuttle.
例如，实验可以在航天器的外部进行。
For example, experiments can be placed on the outside of a spacecraft.
旧航天器永远不会毁灭。
根据国际条约，美国负责公共和私人航天器的货运。
Under international treaties, the U.S. is responsible for the cargo of both public and private spacecraft.
受技术影响的航天飞机计划刚刚结束，没有后续计划。
The technologically compromised space shuttle program has just come to an end, with no successor.
这只适用于美国的航天活动，但希望是它将有助于使全世界商业航天工业的一套规范标准化。
This only applies to American space activities, but the hope is that it will help standardize a set of norms in the dawning commercial spaceflight industry throughout the world.
重返大气层的航天器受到重力的作用。
Spacecraft which are re-entering the earth's atmosphere are affected by g forces.
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