embryo-sac

常见例句

Both polygonum type and panicum type embryo sac have embellum.
有性生殖和无孢子生殖的胚囊中均有胚珠附器存在;
Abnormal development was observed at tetrad and mature embryo sac.
在四分体和成熟胚囊时期观察到了异常发育现象。
Genesis of megaspore and development of embryo sac in Carica papaya L.
番木瓜的大孢子发生与胚囊发育。
These abnormalities would cause the abnormal structure of mature embryo sac.
这些异常可能最终导致多种结构异常成熟胚囊的形成。
While in the Angiophyta the female gametophyte is simply the EMBRYO SAC.
被子植物门的雌配子体为简单的胚囊；
The development of embryo sac in Prunus americana Marsh var. is often abnormal.
鸡心李(Prunus americana Marsh var.;)