PLIFposterior lumbar interbody fusionPLn.分界线(合用线；有效负载；信号灯；金属板)PLGA microspheres聚乳酸-羟基乙酸微球PluteUa xylosteUa小菜蛾Plimmer rs bodies贝拉氏体plicae uretetrica[医] 输尿管间襞plunging necklineph.pleural tail sign胸膜尾征, 尾征Pleurotus streams木耳Plutdla xylostdla小菜蛾pleiotropy effect多效性pleural apophysis侧板内突