A.隨大流B.環(huán)保C.控制絲杠發(fā)熱源,減少熱變形D.提升絲杠剛性
A.伺服驅(qū)動、變頻驅(qū)動B.變頻驅(qū)動、伺服驅(qū)動C.變頻驅(qū)動、變頻驅(qū)動D.伺服驅(qū)動、伺服驅(qū)動
A.稀油、稀油B.油脂、稀油C.稀油、油脂D.油脂、油脂