PRDV=Peak-Reading Digital Voltmeter[测]峰值数字伏特计[电压表]PRabbr.(=public relation) 公共关系Prasanta Chandra Mahalanobisn.著名印度科学家和应用统计学家prmary degenerative dementia原发性退行性痴呆Prausnitz-Kustner antibody反应素przewalsk rhododendron fruit金背枇杷Prspiratory muscle paralysis呼吸肌麻痹pranging shore installations轰炸岸上设施prallel to serial conversion并一串变换prgrammable logic controller可编程控制器Prcing in Public Water Supply公共供水定价方法分析praetical teaching of project工程实践教学