A.1000rpm B.3000rpm C.5000rpm D.10000rpm
A.對(duì)稱順銑 B.對(duì)稱逆銑 C.不對(duì)稱順銑 D.不對(duì)稱逆銑
A.順銑 B.逆銑 C.端銑 D.周銑