A.組件裝配和部件裝配 B.組件裝配和總裝配 C.零件裝配和總裝配 D.部件裝配和總裝配
A.裝配 B.組件裝配 C.總裝配 D.部件裝配
A.πn/60 B.2πn/60 C.πn/1000 D.2πn/1000