For an object to be in rotational equilibrium about a certain point, the total torque about this point must be zero.
一个物体若要在某一点处处于转动平衡，在这一点处的总力矩必须为零。
Based upon modification of the normal stresses over the slip surface, the explicit limit equilibrium solution was derived for the 3d safety factor of asymmetric and rotational slopes.
基于滑面正应力修正模式，推导出旋转非对称边坡三维极限平衡安全系数显式解答。
The increase of rotational speed leads to the increase in equilibrium torque.
提高转速，平衡扭矩反而升高。
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