同时引入齿轮连杆基本杆组的概念，将一些颇有争议的齿轮连杆机构归为基本机构。
Simultaneity, by the concept of geared linkages groups, classifies some quite disputed geared linkages as basic mechanisms.
根据各种类型的基础四杆机构连杆曲线的特性，研究了输出II级杆组的综合方法。
According to the character of coupler curve of basic four-bar linkage, the synthesis method of output II link-group is studied.
NF无梭织带机引纬机构是由一组平面四连杆机构与一组空间RSSR机构组合而成。
The picking mechanism of NF narrow fabric needle loom is composed of a plane four-bar linkage and a space RSSR linkage.
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