astern nozzle

例句：

1. 1. The asteroidnozzle is used to spray painton the spacecraft.
   星形喷嘴用于在宇宙飞船上喷涂油漆。
2. 2. The asteroid nozzle was designed to improvethe efficiency of the spacecraft'spropulsion system.
   星形喷嘴被设计用来提高宇宙飞船推进系统的效率。
3. 3. Theasteroid nozzle was usedto test the new propulsion technologyon the spacecraft.
   星形喷嘴被用来测试宇宙飞船上的新推进技术。