PQ=Permeability Quotient 渗透系数Pn.字母Ppyocalyx[医] 肾盏积脓pyrantel噻嘧啶pygalgia臀痛pyraemia血碳(质)正常Pystynen皮斯蒂宁pyogenicadj.[医]生脓的；化脓的pyrazoly吡唑基Pyrurate丙酮酸盐Pyrroles吡咯类pyrazinen.吡嗪(对二氮杂苯)