【物理】 动量;冲量。
the impetus gained by a moving object
冲力,势头
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the vehicle gained momentum as the road dipped. 下坡时,车辆冲力增大。
the impetus and driving force gained by the development of a process or course of events
动力;势头
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the investigation gathered momentum in the spring. 春天调查力度加大了。
"late 17th cent.: from Latin, from