A.對(duì)刀點(diǎn)B.編程原點(diǎn)C.刀位點(diǎn)D.機(jī)床原點(diǎn)
A.夾持力不足 B.工件之熱膨脹系數(shù)太低 C.主軸轉(zhuǎn)數(shù)太慢 D.機(jī)器自動(dòng)潤(rùn)滑系統(tǒng)故障
A.通用頂尖 B.外撥頂尖 C.定位銷 D.特殊頂尖