PRM=Personal Radiation Monitor 人体辐射检测器PRabbr.(=public relation) 公共关系praesutural bristle沟前鬃Pruritic dermatitis瘙痒性皮炎practrical teaching实践教学pruning fruit trees修剪果树prandtl glauert law普朗特 格劳厄脱规则prcximate principle[医] 近似成分, 直接成分prvtective relaying继电保护pruritus gravidarum妊娠瘙痒症prurigo gestationis妊娠痒疹prlce-sensitivity价格敏感