unmanned spacecraft
短语词组
- unmanned d spacecraft 无人飞船
- an unmanned spacecraft 一个无人驾驶航天器;无人飞船;无人的飞船
- Unmanned spacecraft operational procedures 无人驾驶的飞行器操作程序
- unmanned spacecraft detail 无人航天器;无人宇宙飞船
- Unmanned spacecraft operability 不载人航天器的可操作性 返回 unmanned spacecraft