embryo sac

常見例句

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，在胚囊中見到二細(xì)胞原胚及數(shù)個(gè)胚乳游離核。
Then the uninucleate embryo sac forms 7-celled or 8-nucleate embryo sac of polygonum type following its three times division successively.
合點(diǎn)端功能大孢子發(fā)育為單核胚囊，并經(jīng)三次核的有絲分裂形成7細(xì)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.
利用改進(jìn)的GMA半薄連續(xù)切片技術(shù)對水稻品種IR36胚囊形成和發(fā)育進(jìn)行了研究。