本文导出空间开链型机构惯性力完全平衡的充分必要条件，提出相对平衡的概念。
The sufficient and necessary condition for complete inertial force balancing of open-chain spatial linkages is derived and the concept of relative balancing is presented in this paper.
对两个含有高级齿轮连杆基本杆组的齿轮连杆机构采用质量流和派生转动惯量流的思想进行惯性力和惯性力矩完全平衡。
Completely balance the shaking force and shaking moment of two geared linkages with high-ranking geared linkages groups by the method of mass flow and derivative moment of inertia flow.
针对JF75G-125型闭式曲柄压力机侧向惯性力得不到平衡的问题，提出了一种对称布置的结构方案，实现完全意义上的动平衡。
To alleviate the inertial forces of JF75G-125 type press, a symmetry scheme is presented to realize full dynamic balance.
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