音标：[mәu'mentәm]
n. 动力, 动量
【化】 动量
【医】 动量
在线英汉词典

momentum的短语、例句：

momentum n [U] 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. 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.