单词	principle-knowledge
释义	principle-knowledge 知识点¹⁰⁰
随便看	mechanical power transmission mechanical practice mechanical precision mechanical precision instrument mechanical pre-cutting method mechanical preparation mechanical presbyacousis mechanical problem mechanical problems/defects mechanical press mechanical-press mechanical press brake mechanical presses mechanical press forging die mechanical pressing mechanical pressure mechanical, pressure mechanical pressure actuator mechanical pressure atomizer mechanical pressure charging mechanical pressure gage mechanical pressure gauge mechanical pressure pump mechanical pressure recorder mechanical pressure scanner