基本解释[经济学]圆磨法齿轮滚刀词组短语短语circular r grinding gear hob 圆磨法齿轮滚刀circular grinding build -up gear hob 圆磨法装配式滚刀circular grinding boost -up gear hob 圆磨法装置式滚刀circular grinding gear hob更多词组专业释义经济学圆磨法齿轮滚刀