Properen普罗普朗properadj.合适的；正当的；真正的proper way of doing business经营业务的正当途径proper affine transformation固有仿射变换Properdin deficiency disease备解素缺乏病properties of coating colors涂料性能proper noun and general noun专名与通名proper palmar digital nerves指掌侧固有神经proper motion in declination赤纬自行properties of biodegradation生物降解特性proper digital palmar artery指掌侧固有动脉proper point of intersection固有交点