无人宇宙飞船上天了。

The unmanned spacecraft was launched.

那将是一个几乎无人操作的机构。

It's a facility which is practically unmanned.

我们需要有更多的测试无人飞船。

We need to have more tests of the unmanned spaceship.

上述定义将排除无人飞船或飞艇。

The above definition would rule out unmanned dirigibles or airships.

中国首次完成无人驾驶飞船试验。

China completed its first unmanned test of a spacecraft meant to carry astronauts.