momentum

英 [mə'mentəm] 美 [mo'mɛntəm]
  • n. 势头;[物] 动量;动力;冲力

助记提示


1. 动量表示为物体的质量和速度的乘积,因此动量是每个瞬间时间点的瞬间状态量。所以它名称是:moment => momentum.
2. 动量(momentum)与冲量(impulse)的区别:动量是状态量,冲量是一个过程量。

中文词源


momentum 动力,势头

来自拉丁语momentum,运动,变化,冲击,词源同moment,move.

英文词源


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.

双语例句


1. Demands for his dismissal have gathered momentum in recent weeks.
最近几周,要求将他解职的呼声越来越高。

来自柯林斯例句

2. The fight for his release gathers momentum each day.
争取使他获释的斗争声势日益加强。

来自《权威词典》

3. The sledge gained momentum as it ran down the hill.
雪橇从山上下冲时的动力越来越大.

来自《简明英汉词典》

4. The historical tide is surging forward with great momentum.
历史洪流气势磅礴,奔腾向前.

来自《现代汉英综合大词典》

5. The style prevails and picks up momentum.
这式样很流行,而且越来越流行.

来自《简明英汉词典》

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