| 释义 |
[/məˈmentəm, məuˈm-; məˋmɛntəm, moˋm-/]n [U] 用法:
1 force that increases the rate of development of a process; impetus 动力; 冲力; 势头:
The movement to change the union's constitution is slowly gathering momentum. 修改工会宪章的运动正慢慢加强. 用法:
2 (physics 物) quantity of motion of a moving object, measured as its mass multiplied by its velocity 动量:
The sledge gained momentum as it ran down the hill. 雪橇从山上下冲时动量越来越大. |