perinatal death短语¹⁸⁰⁰⁹⁸⁺¹ 基本例句 围产期死亡,产期死亡 For the post term pregnancies, the rates of neonatal asphyxia and perinatal death increased obviously with the gestational weeks increasing, amniotic fluid decreasing, abnormal stage of labor. 过期妊娠随孕周的增加、羊水量减少、产程异常新生儿窒息的发生率明显增加； cjrh