What are the main features of machines?
A、Assemblyofman-madecomponents;
B、Determinaterelativemotionsamongdifferentcomponents;
C、Canconductwork/energyconversion;
D、Welldesignedshapesandstructures
发布时间:2024-09-05 02:24:18
A、Assemblyofman-madecomponents;
B、Determinaterelativemotionsamongdifferentcomponents;
C、Canconductwork/energyconversion;
D、Welldesignedshapesandstructures