propulsion
英[pr?'p?l?(?)n]
美[pr?'p?l??n]
- n. 推進(jìn)；推進(jìn)力
詞態(tài)變化
復(fù)數(shù):?propulsions;形容詞:?propulsive;
助記提示
1、pro- "forward" + puls- "drive, push" + -ion.
2、含義：push forward, drive forward, drive forth.
中文詞源
propulsion 推進(jìn)，推動
來自propel,推進(jìn)，推動，-s,過去分詞后綴。
英文詞源
- propulsion (n.)
- 1610s, "expulsion," noun of action formed from propuls-, past participle stem of Latin propellere "to propel" (see propel). Meaning "act of driving forward, propulsive force" first attested 1799.
雙語例句
- 1. The nineteenth century witnessed a revolution in ship design and propulsion.
- 19世紀(jì)船舶設(shè)計(jì)和船舶動力領(lǐng)域發(fā)生了重大的變革。
來自柯林斯例句
- 2. Interest in jet propulsion was now growing at the Air Ministry.
- 航空部對噴氣推進(jìn)的興趣正在增加。
來自辭典例句
- 3. The liquids employed for rocket propulsion are called propergols.
- 用于火箭發(fā)動機(jī)的液體稱為液體火箭推進(jìn)劑.
來自辭典例句
- 4. The propulsion system consists of five F - 1 engines.
- 推進(jìn)系統(tǒng)包括五個F -1 發(fā)動機(jī).
來自辭典例句
- 5. The essential quality that dictates the choice of this propulsion system is readiness.
- 決定選用這種推進(jìn)系統(tǒng)的主要因素就是其簡便性.
來自辭典例句