prematures早产儿prematureadj.提前的；过早的；早产的n.早产儿；早熟prematurerupture of membrane胎膜早破premature AV junctional beat房室交界性早搏premature shedding of leaves成熟前落叶premature release probability切断呼叫概率Premature rupture of membrans胎膜早破Premature fusion of epiphysis骺早熟融合premature convergence problem早熟问题Premature pregnancy delivered末足月妊娠已产premature hereditary canitiesPHCpremature ventricular complex心室期前复合波