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

• As the dog sprang on me, I made use of its momentum to press it down and hold it there.
  狗扑过来，我就势把它摁住不放。
• But the momentum of the recovery pushed all problems aside.
  但经济复苏的势头将一切问题都推到了一旁。
• You need momentum and action to move ahead this year!
  今年你需要动力和行动来实现这个目标。
• You give it spin angular momentum, it becomes stable.
  有了一个旋转的角动量，就变得稳定。
• That means if there's torque, there's a change of angular momentum.
  这意味着，如果那有一个力矩，就会有角动量的改变。
• 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。
• I torque for time delta t, and so I add angular momentum like this.
  我的力的时间是δt，我加入，了角动量像这样。
• Constraints can give you speed and momentum.
  约束能给你速度和动力。
• Development in sino-japanese relations has on the whole maintained a good progressive momentum.
  中日关系总体上保持了发展的势头。
• 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。