... kinematic viscosity运动粘度 kinetic energy coefficient动能系数 knee point voltage拐点电压 ...
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摩擦力不守恒，它取决于摩擦力，动能摩擦系数，一直是相同的。
The frictional force remains constant, dependent on the friction, the kinetic friction coefficient, is always the same...
这项研究表明，脚和球之间的摩擦系数的增加导致了球获得更多的角动能。
This study showed that an increase in the coefficient of friction between the ball and the foot caused the ball to acquire more spin.
推导了相关文献中定义的碰撞恢复因数与动能损耗系数间的对应关系。
The correlation between the factor of restitution in impact and the factor of kinetic energy loss defined in corresponding references is deduced.
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