The problem of cooling the engine remains the same, whether the ship is manned or unmanned, and the conclusion is the same.

不能是载人还是无人驾驶的航天器，同样存在发动机冷却的问题，因而结论也是一样的。

youdao

The problem of cooling the engine remains the same, whether the ship is manned or unmanned, and the conclusion is the same.

不能是载人还是无人驾驶的航天器，同样存在发动机冷却的问题，因而结论也是一样的。

youdao