embryo-sac cell
常见例句
- The mature embryo sac was one with five nucleus, i. e. , egg apparatus and two-nucleus central cell.
成熟的胚囊是五核胚囊：由近珠孔端的卵细胞和两个助细胞以及两个中央极核细胞构成的。 - 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。 - When pollen tubearrives at ovary and enters embryo sac by de- generated synergid, two sperm cells are released into the cell.
花粉管到达子房，通过退化助细胞进入胚囊，释放出两个精细胞。 返回 embryo-sac cell