If the object is in pure roll, the friction could be substantially less than the maximum friction possible.
如果是纯滚动，摩擦基本上，小于可能的，最大值。
The numerical solution of the equation describing the motion of the floating piston pin is obtained by bringing in the conception of friction force coefficient under slide-roll condition.
引入滚滑状况下的摩擦力系数，从而求得活塞销运动方程的数值解。
If the roll core is made of special materials, smaller friction coefficient of tile can be used.
客户的卷芯如果是特殊材料制造的，可采用摩擦系数较小的瓦片材料。
In the calculations of roll torque of ablation lag, a rapid method for calculating combined influence of ablation injection and roughness on skin friction coefficient is mainly described.
在烧蚀滞后滚转力矩的计算方法中，本文主要介绍滞后引射率和粗糙度对壁面摩擦系数联合影响的一种快速计算方法。
In the calculations of roll torque of ablation lag, a rapid method for calculating combined influence of ablation injection and roughness on skin friction coefficient is mainly described.
在烧蚀滞后滚转力矩的计算方法中，本文主要介绍滞后引射率和粗糙度对壁面摩擦系数联合影响的一种快速计算方法。
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