prematures早产儿prematureadj.提前的；过早的；早产的n.早产儿；早熟premature atrial complex房性期前复合波premature ectopic P wave过早的异位P波premature mitral closure二尖瓣过早关闭premature luteirtization过早黄素化premature-dropped mango芒果落果premature ovarian tailure卵巢早衰premature ovarian failure卵巢功能早期衰退premature visual exposure提前视觉刺激premature junctional beat交界区早搏premature atrial captures心房过早夺获