posterior lip后唇posterioradj.(在时间；次序上)较后的n.臀部posterior surface of scral bone骶骨后面posterior scleral reinforcement后巩膜加固术posterior tooth composite resin后牙复合树脂posterior left ventricular wall左室后壁posterior subendocardial injury后壁心内膜下损伤posterior mitral valve prolapse二尖瓣后叶脱垂posterior commissure of cerebrum大脑后连合posterior and anterior open bite性开牙合posterior intertrochanteric line转子间嵴posterior internal orbital canal后内眶管, 后筛孔