Bidirection Tolerance 位置度规定 ; 双边公差

bidirection printer 双向打印机

Query Bidirection 智能双向流程控制

bidirection chain 双向链锁

Isoelectric focal bidirection electrophoresis 等电聚焦双向电泳系统

Bidirection selfhealing ring 双向自愈环

Bidirection Iterator 双向迭代器

silicon bidirection switch 硅双向开关