propulsion例句

The nineteenth century witnessed a revolution in ship design and propulsion.
19世纪船舶设计和船舶动力领域发生了重大的变革。

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。

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.

• #propulsion