英语词汇“up and down motion”的翻译、意思、用法、释义-英汉汉英双解词典

词汇	up and down motion
释义	up and down motion ʌpænddaunˈməuʃən上下起伏
随便看	engine particles engine parts Engine Parts Coordinating Office engine parts structure engine passage engine pedestal engine performance engine-performance engine performance chart engine performance curve engine pickup engine pick ups engine pick-ups engine piston engine pit engine plance engine plant engine plant operating in closed cycle engine plantpower plant engine plant with magnetohydrodynamic generator engine pliers engine plough engine plow engine plume engine pneumatic characteristics