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.
对机器人的牵引力、运动速度、在不同摩擦系数介质表面上的运动能力、头舱姿态进行了试验。
Experiments are made on locomotion force, velocity, locomotion ability on surfaces with different friction coefficients, and pose of the head cabin.
本文采用较简单易懂的数学方法由洛仑兹系数γ直接导出相对论条件下的功和动能的表达式。
This paper uses a rather simple and easy understanding method to directly derivework and work energy expression under the conditions of Relativity theory conditionfrom Lorrentz factor Y.
结果表明，本模式能合理地模拟不同地表热量平衡、地表气温、混合层高度、湍流交换系数、湍流动能、位温廓线等，以及它们的日变化。
The result shows that this model can simulate the structure and eigenvalues of atmosphere boundary layer and their changes in a day.
结果表明，本模式能合理地模拟不同地表热量平衡、地表气温、混合层高度、湍流交换系数、湍流动能、位温廓线等，以及它们的日变化。
The result shows that this model can simulate the structure and eigenvalues of atmosphere boundary layer and their changes in a day.
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