chick embryo air sac鸡胚气室
chick embryo amnoitic sac鸡胚羊膜腔
embryo-sac胚乳囊
embryo-sac fertility胚囊育性
embryo-sac mother胚囊母细胞
embryo-sac cell胚囊细胞
chick embryo yolk sac鸡胚卵黄囊
embryo o sac胚囊
Polygonum type embryo-sac蓼型胚囊
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。
参考来源 - 玉米的单倍体育种及基因转化的研究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。
参考来源 - 南蛇藤（Celastrus orbiculatus Thunb.）胚胎学研究N（名词） the structure within a plant ovule that contains the egg cell: develops from the megaspore and contains the embryo plant and endosperm after fertilization 胚囊