0 the force that keeps an object moving or keeps an event developing after it has started -- 动量，冲量；冲力；推动力；势头
Once you push it, it keeps going under its own momentum. 一旦你推动了它，它就会在自己的动量作用下持续运动。
The spacecraft will fly around the earth to gain/gather momentum for its trip to Jupiter. 航天器将绕着地球飞行以获取飞向木星所需的动力。
The play loses momentum (= becomes less interesting, energetic, etc.) by its half way stage. 这部戏演到一半时就没了看头。
In an attempt to give new momentum to their plans, the committee set a date for starting detailed discussions. 为了给他们的计划赋予新的动力，委员会确定了开始讨论细节的日期。
The campaign has been gaining momentum ever since the television appeal.
The campaign for an elected mayor seems to have lost momentum.
They are usually accompanied by relatively low pressure at their centres, and are a major source of momentum transport towards the walls.
Three regions are shown for different trapped particles in momentum space.
Theoretical considerations on the momentum and energy transfer to small particles of different material during passage of the measuring volume were discussed.
Similarly, any determination of the energy and momentum of the particles demands that we renounce their exact coordination in time and space.
