英语词汇amniotic sac怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	amniotic sac
释义	amniotic sac 简明释义羊膜：一种包裹胎儿的薄膜，包含羊水和胎儿，起到保护和维持胎儿生长的作用。网络释义 1 [胚]?羊膜囊羊膜囊（amniotic sac）的内部是羊膜（amnion），羊膜里面装着羊水（amniotic fluid）；羊膜囊的外部则是绒毛膜（chorion），装着羊膜，属于胎盘的一部分... 短语 1 Amniotic sac bulging 羊膜囊膨出 2 number of amniotic sac 羊膜囊数 3 Infection of amniotic sac and membranes 羊膜囊和胎膜的感染双语例句 1 The amniotic sac breaks and is expelled in the third stage of labor. 在第三产程，羊膜囊破裂并被排出。 2 Fluid in the amniotic sac surrounding the fetus also contains fetal DNA. 羊膜中的液体包围这胎儿同样含有胎儿的DNA。 3 A protective fluid-filled amniotic sac encloses and cushions the fetus. 充满液体的羊膜包裹并保护胎儿缓和震动。同近义词 [胚]羊膜囊 amniotic pouch
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