目前弹簧连杆结构主要有两种：拉伸式弹簧连杆、压缩式弹簧连杆。

Recently there are two types of spring-linkages: the tension structure and the compressed structure.

youdao

目前弹簧连杆结构主要有两种：拉伸式弹簧连杆、压缩式弹簧连杆。

Recently there are two types of spring-linkages: the tension structure and the compressed structure.

youdao