When the float upward force and float suffered gravity, buoyancy and viscous forces of the force equal to three when the float is in equilibrium.
当浮子上升的力与浮子所受的重力、浮力及粘性力三者的合力相等时，浮子处于平衡状态。
The water coning caused by the imbalance between gravity and viscous forces is the most important reason for water production in different fractured reservoirs.
重力和黏滞力之间的不平衡性是水锥生产的重要原因，也是不同裂缝性碳酸盐岩油藏见水的重要原因。
Force analysis reveals that there are drag and trapping forces imposed on the bead in the opposite directions, respectively, in a viscous medium.
力的分析表明，在粘性介质中存在一对方向相反的阻力和拉力作用于微颗粒。
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