平面机构 meaning in English

planar mechanism
plane mechanism

The classification of gear pairs and its classification methods in plane mechanism
平面机构中齿轮副的类别及其确定方法
Turning variables iterative method for kinematic analysis of complex planar link ages
复杂平面机构运动分析的角变量逼近法
Meanwhile , some combined application examples for solving the instantaneous center on planar mechanism through lou " s theorem are also given
同时，给出了罗洪田定式在求解平面机构瞬心中的组合应用类型。