The interphase forces on the propagation were investigated, including wall shear stress, virtual mass force and drag force.

着重分析了相间作用力，包括壁面剪切应力、虚拟质量力、拖拽力，对压力波传播速度和衰减的影响。

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Newton discovered that any two objects in the universe attract each other, and that this force is proportional to their mass.

牛顿发现宇宙中任何两个物体都相互吸引，而且这股引力与它们的质量成比例。

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In rotation, force becomes torque, mass becomes moment of inertia, and acceleration becomes angular acceleration.

在旋转时，力变成力矩，质量变成转动惯量，加速度变成角加速度。

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Now, gravity, well force, is equal to mass times acceleration, g and the acceleration due to gravity is g.

是重力，等于质量乘以加速度，由重力导致的加速度是。

麻省理工公开课 - 热力学与动力学课程节选

And so we know the force for a particular mass, and we know the area of the piston.

我们知道每个质量对应的力，也知道活塞的面积。

麻省理工公开课 - 热力学与动力学课程节选

Mass of an object is how much it hates to accelerate in response to a force.

物体的质量,反映了物体在力的作用下加速的难易程度

耶鲁公开课 - 基础物理课程节选

The craze in Finland at the time was for physics games, in which the action in a game replicates the force and mass of the physical world instead of cartoonish explosions and speeds.

FORBES: Magazine Article

Given that the money was no longer his motivating force, a mass sum of it could not now serve as an incentive to get out of the business.

FORBES: Move up http://i.forbesimg.com t Move down

President Asif Ali Zardari has said the government wants to end the mass protest through negotiations, not force.

BBC: Pakistan government seeks end to cleric Qadri's protest