momentum

英 [məˈmentəm]

美 [moʊˈmentəm]

n.  推进力; 动力; 势头; 冲力; 动量

CET6考研IELTSGRETEM8化学

Collins.2 / BNC.5641 / COCA.4335

牛津词典

noun

• 推进力；动力；势头
  the ability to keep increasing or developing
  1. The fight for his release gathers momentum each day.
     争取使他获释的斗争声势日益加强。
  2. They began to lose momentum in the second half of the game.
     在比赛的下半场，他们的势头就逐渐减弱。
• 冲力
  a force that is gained by movement
  1. The vehicle gained momentum as the road dipped.
     那辆车顺着坡越跑冲力越大。
• 动量
  the quantity of movement of a moving object, measured as its mass multiplied by its speed

柯林斯词典

• N-UNCOUNT 势头;冲劲;动力
  If a process or movement gainsmomentum, it keeps developing or happening more quickly and keeps becoming less likely to stop.
  1. This campaign is really gaining momentum...
     该运动的势头越来越猛。
  2. They are each anxious to maintain the momentum of the search for a solution.
     他们每个人都迫切希望能一直劲头十足地去寻求解决方案。
• (物理学中的)动量，冲量
  In physics,momentumis the mass of a moving object multiplied by its speed in a particular direction.

英英释义

noun

• the product of a body's mass and its velocity
  1. the momentum of the particles was deduced from meteoritic velocities
• an impelling force or strength
  1. the car's momentum carried it off the road
  Synonym:impulse

双语例句

• They picked up momentum, then slipped into neutral and coasted quietly down the slope.
  他们加大油门，再切入空挡，随后没大响动地滑下山坡。
• We cannot let this momentum wane.
  我们不能让这种势头减弱。
• Now, the kinetic energy and the momentum depend on your reference frame.
  那么动能和动量，取决于你的参考系。
• We deepened reform and opening-up to boost the vitality and momentum of economic and social development.
  坚持深化改革和扩大开放，着力增强经济社会发展的活力与动力。
• Spinning this direction, angular momentum is in this direction.
  这个方向旋转，角动量是，这个方向。
• As my opponent threw himself at me, I used his momentum to fling him to the ground.
  对手扑过来，我就势把他摔倒在地。
• Angular momentum has two key components: spin angular momentum and orbital angular momentum.
  角动量有两个分量：自旋角动量和轨道角动量。
• You should also be familiar with momentum and kinetic energy for elastic and inelastic collisions.
  你应该熟悉弹性和非弹性碰撞下的动量和动能变化。
• You give it spin angular momentum, it becomes stable.
  有了一个旋转的角动量，就变得稳定。
• We've got to win the game, otherwise we'll lose our momentum.
  这场比赛咱们一定得赢，不能挫了锐气。