- 释义：
- n. 推进，推进力
- 构词：
- pro向前+puls驱动,推+ion表名词→向前推
- 例句：
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Interest in jet propulsion was now growing at the Air Ministry.
航空部对喷气推进的兴趣正在增加。
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The liquids employed for rocket propulsion are called propergols.
用于火箭发动机的液体称为液体火箭推进剂.
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The propulsion system consists of five F - 1 engines.
推进系统包括五个F -1 发动机.
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