四杆链 meaning in English

four-bar chain

Conic four bar linkage
圆锥四杆链系
As - sbc contains a basic four - bar loop ( bfbc ) and a dyad . base on the distance of two common joints shared by the bfbc . and the dyad , the model of circuit identification is established
将stephenson六杆链( s - sbc )看作由一个基础四杆链( bfbc )和双杆组组成，基于bfbc和双杆组的两个公共副之间的距离，建立了s - sbc回路识别模型。