英语语法分析

Arcjet is a kind of propulsion device for mechanical-operation and control of spacecraft.

电弧加热发动机是一种为航天器提供机动和控制推力的装置。

The performance experiment of arcjet was made in vacuum chamber and argon was chosen as the propellant.

采用氩为推进剂，在真空室中进行了发动机的性能实验。

Arcjet which used water as propellant has special advantage in deep space exploration and manned spacecraft.

以水作为推进剂的电弧加热发动机，在深空探测和载人航天中具有独特的优势。