无人宇宙飞船 Unmanned Spacecraft
发射无人宇宙飞船上空 launch unmanned spaceship into space
无人的宇宙飞船 spaceships without people
无人驾驶的宇宙飞船 spaceships without people
无人驾驶宇宙飞船 space ships without people
美国航空航天局将向月球坠落两艘无人宇宙飞船以探测冰水是否存在。
Nasa is set to crash two unmanned spacecraft into the Moon in a bid to detect the presence of water-ice.
他们说，在本世纪末之前，无人驾驶的宇宙飞船就能到达那里，让今天活着的人们及时看到它。
They say it could be reached by an unmanned spaceship before the end of the century in time for people alive today to see it.
太阳系外还有另外一个完全未知的宇宙，无人察觉。
There is a whole uncharted universe out there that nobody else is aware of.
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