pytpretty young thing 可爱的年轻女郎、小动物； abbr.；=pretty young thing 漂亮的小东西Pn.字母Pp-toluenesulfonation对甲苯磺酰化pyogenic osteomyelitis化脓性骨髓炎Pyloric sphincterotomy幽门括约肌切开术p-tert-amyl phenol对叔戊基酚p-cresyl isobutyrate异丁酸对甲酚酯Pygeretmus vinogradovin.维氏肥尾跳鼠p-methylcyclohexanol对甲基环己酮P.E. ecologization体育生态化Pythiogeton autossytumn.间生类腐霉pyrrolylcarbonyl group吡咯羰基, 吡咯[基]甲酰