embryo sac

基本解释

• [植] 胚囊

英汉例句

双语例句

• There ware two cell proembryo and some endosperm free nucleuses in the embryo sac 7-8 days after pollination;
  授粉后7-8天，在胚囊中见到二细胞原胚及数个胚乳游离核。
• Then the uninucleate embryo sac forms 7-celled or 8-nucleate embryo sac of polygonum type following its three times division successively.
  合点端功能大孢子发育为单核胚囊，并经三次核的有丝分裂形成7细胞（8核）的蓼型胚囊。
• The process of embryo sac formation and development in rice (cultivar IR36) was studied by the modified GMA semi-thin serial sectioning technique.
  利用改进的GMA半薄连续切片技术对水稻品种IR36胚囊形成和发育进行了研究。

• embryo sac更多例句

词组短语

短语

• chick embryo air sac 鸡胚气室
• chick embryo amnoitic sac 鸡胚羊膜腔
• embryo -sac cell 胚囊细胞
• chick embryo yolk sac 鸡胚卵黄囊
• embryo o sac 胚囊

• embryo sac更多词组

英英字典

柯林斯英英字典

• the structure within a plant ovule that contains the egg cell: develops from the megaspore and contains the embryo plant and endosperm after fertilization

• embryo sac剑桥字典
• embryo sac柯林斯字典

专业释义

农业科学

• 胚囊

  Through paraffin section,we can see that the embryogenesis was originated inside the embryo sac.
  通过石蜡切片初步观察了孤雌生殖的胚胎发生过程，发现胚胎发生是从胚囊里的单倍体细胞起源的。

  生物学

• 胚囊

  The mature embryo sac is growth after spread pollen 4～6 days.
  胚囊的成熟发生于散粉后第4～6天。