yolk sac

基本解釋

• （等於yolk bag）卵黃囊

同根派生

• yolk sac相關詞

英漢例句

雙語例句

• The yolk sac and yolk stalk on one of them were well preserved.
  觀察了三例人胚外形，其中一例還有保存良好的卵黃囊和卵黃蒂。
• The results showed that more than80%of nutrition in yolk sac were utilized in59hours, which suggested that it was the main period of yolk sac utilization.
  結(jié)果表明，在59時齡以內(nèi)80%以上的卵黃囊營養(yǎng)被吸收利用，說明這一時期是卵黃囊吸收利用的主要時期。
• I do not believe, however, that this is normal, since in the wild, young with such a large yolk sac probably would not survive without parental protection.
  我不相信，不過，這是正常的，因爲在野生環(huán)境年紀這麼大的卵黃囊，也許就不會生存父母的保護。

• yolk sac更多例句

詞組短語

短語

• yolk -sac larva 卵黃期幼生
• visceral yolk -sac 髒層卵黃囊

• yolk sac更多詞組

英英字典

柯林斯英英字典

• the membranous sac that is attached to the ventral surface of the embryos of birds, reptiles, and some fishes and contains yolk

• yolk sac劍橋字典
• yolk sac柯林斯字典

專業(yè)釋義

辳業(yè)科學

• 卵黃囊

毉葯科學

• 卵黃囊

  BACKGROUND&AIM: To explore the effect of alcohol on the development of mouse visceral yolk sac(VYS)during organogenesis period,and the relationship to the teratogenicity of alcohol.
  背景與目的 :探討乙醇對小鼠胚胎髒層卵黃囊發(fā)育的影響及其與畸形發(fā)生的聯(lián)系。

  生物學

• 卵黃囊
• 卵黃囊
• 蛋黃囊
• 卵黃巢