storable propellant rocket engine

例句：

1. 1.The design of this rocket engine is highly innovative, capable of storing a large amount of propellant.
   这种火箭发动机的设计非常创新，能够储存大量的推进剂。
2. 2.The rocket engine's efficiency is greatly improved by the use of storable propellants.
   通过使用可储存推进剂，火箭发动机的效率得到了极大的提高。
3. 3.This rocket engine has been widely used in space exploration, providing significant support for human space missions.
   这种火箭发动机在太空探索中被广泛使用，为人类的太空任务提供了重要的支持。