果味酸柯林斯词典

yolk sac

Y 开头单词

基本解释

  • （等于yolk bag）卵黄囊

同根派生

     

英汉例句

    双语例句

  • The yolk sac and yolk stalk on one of them were well preserved.
    观察了三例人胚外形，其中一例还有保存良好的卵黄囊和卵黄蒂。
  • 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.
    结果表明，在59时龄以内80%以上的卵黄囊营养被吸收利用，说明这一时期是卵黄囊吸收利用的主要时期。
  • 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，不过，这是正常的，因为在野生环境年纪这么大的卵黄囊，也许就不会生存父母的保护。

词组短语

    短语

  • yolk -sac larva 卵黄期幼生
  • visceral yolk -sac 脏层卵黄囊

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

专业释义

    农业科学

  • 卵黄囊

    • 医药科学

  • 卵黄囊

    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.
    背景与目的 :探讨乙醇对小鼠胚胎脏层卵黄囊发育的影响及其与畸形发生的联系。

    生物学

  • 卵黄囊
  • 卵黄囊
  • 蛋黄囊
  • 卵黄巢