selective gear

selective-英汉词典-英中字典-速译通... ... selective gear 配换齿轮 selective gear drive 选择齿轮传动 ...

石油英语词汇(S2)--石油百科 ... selective gas shut-off 选择性封堵气层 selective gear 配齿轮 selective hardening 局部淬火 ...

直角三角形_馆档网 ... "选择配合"," selective fit" "选择变速齿轮"," selective gear" "局部硬化"," selective hardening" ...