单词	polar coordinate vectors
释义	polar coordinate vectors 极坐标矢量
随便看	mechanical position readout mechanical position readouts mechanical powder mechanical power mechanical-power Mechanical Power Clamping Screws mechanical power coal sampling equipment mechanical power fluctuations mechanical power house mechanical power lift mechanical power lift clutch mechanical power loss Mechanical power press mechanical powers 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