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

n.
- 1
  thin innermost membranous sac enclosing the developing embryo of higher vertebrates (reptiles, birds and mammals)
  同义词：amnion??/??amnios

1
One outer membrane envelops both amniotic sacs.
两个羊膜囊由一个外膜层包裹。
2
Ultrasonography had great advantage over MRI in showing yolk sacs, amniotic sacs, extraembryonic coelom and embryocardia-beats ( P< 0.005).
MRI显示早早孕、早中期的卵黄囊、胚外体腔、羊膜囊及胎心搏动不如超声（P<0 .0 0 5 ）；
3
This week, amniotic fluid is helping the air sacs in your baby's lungs get ready for breathing as she practices inhaling and exhaling.
这周，当婴儿羊水会帮助肺部的肺泡为慢慢的呼吸做好准备。

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。英英释义 n. 1 thin innermost membranous sac enclosing the developing embryo of higher vertebrates (reptiles, birds and mammals) 同义词：amnion??/??amnios 双语例句 1 One outer membrane envelops both amniotic sacs. 两个羊膜囊由一个外膜层包裹。 2 Ultrasonography had great advantage over MRI in showing yolk sacs, amniotic sacs, extraembryonic coelom and embryocardia-beats ( P< 0.005). MRI显示早早孕、早中期的卵黄囊、胚外体腔、羊膜囊及胎心搏动不如超声（P<0 .0 0 5 ）； 3 This week, amniotic fluid is helping the air sacs in your baby's lungs get ready for breathing as she practices inhaling and exhaling. 这周，当婴儿羊水会帮助肺部的肺泡为慢慢的呼吸做好准备。
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