The acting force and motion of vibratile tumbling machine are analysed theoretically.

对振动光饰机的受力和运动进行理论分析。

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Turn on power, setting force value on power display, and time of acting force on counter.

开启电源，于力量显示器上设定施力值，计时器上设置作用力时间；

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The acting force of prying and pressing marks is leverage effect which is different from that of hitting marks, impact effect.

撬压痕迹与打击痕迹的作用力形式不同，分别是杠杆作用和碰撞作用。

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If you connect the body to a spring, which is neither compressed nor extended, there's no force acting on it.

如果将一个弹簧连在这个物体上,弹簧既没有被压缩也没有被拉伸,也不会有力作用在它上面

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Every time you are finding out a different force that's acting on a body with different origin.

每次你都会发现不同来源的力,作用在物体上

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When a body is going around a circle, they say that's some centrifugal force acting.

如果一个物体做圆周运动,他们就说有离心力作用于这个物体

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Not acting will force choice between lousy service and higher prices.

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The lower density means dramatically less drag force acting on the spinning disk stack so that mechanical power into the motor is substantially reduced.

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Even though the force acting on the asteroid would be extremely small, the cumulative effect over a week or so should be enough to do the trick.

ECONOMIST: The American Association for the Advancement of Science