A.數(shù)控機床 B.數(shù)控鉆床 C.加工中心 D.數(shù)控鏜床
A.0.2~40m B.0.2~20m C.0.3~40m D.0.3~20m
A.有級調(diào)速 B.無級調(diào)速 C.恒定轉(zhuǎn)速