momentum

英 [m?'ment?m] 美[mo'm?nt?m]
  • n. 勢頭；[物] 動(dòng)量；動(dòng)力；沖力
CET6TEM8IELTSGRE考研中低頻詞常用詞匯

詞態(tài)變化

復(fù)數(shù):?momentums;?momenta;

助記提示

1. 動(dòng)量表示為物體的質(zhì)量和速度的乘積，因此動(dòng)量是每個(gè)瞬間時(shí)間點(diǎn)的瞬間狀態(tài)量。所以它名稱是：moment => momentum.
2. 動(dòng)量(momentum)與沖量(impulse)的區(qū)別：動(dòng)量是狀態(tài)量，沖量是一個(gè)過程量。

中文詞源

momentum 動(dòng)力，勢頭

來自拉丁語momentum,運(yùn)動(dòng)，變化，沖擊，詞源同moment,move.

英文詞源

momentum (n.)
1690s, scientific use in mechanics, "quantity of motion of a moving body," from Latin momentum "movement, moving power" (see moment). Figurative use dates from 1782.

雙語例句

1. Demands for his dismissal have gathered momentum in recent weeks.
最近幾周，要求將他解職的呼聲越來越高。

來自柯林斯例句

2. The fight for his release gathers momentum each day.
爭取使他獲釋的斗爭聲勢日益加強(qiáng)。

來自《權(quán)威詞典》

3. The sledge gained momentum as it ran down the hill.
雪橇從山上下沖時(shí)的動(dòng)力越來越大.

來自《簡明英漢詞典》

4. The historical tide is surging forward with great momentum.
歷史洪流氣勢磅礴,奔騰向前.

來自《現(xiàn)代漢英綜合大詞典》

5. The style prevails and picks up momentum.
這式樣很流行,而且越來越流行.

來自《簡明英漢詞典》