囊胚形成,胚泡形成
It enter the late blastula stage in 6h50min. 6小时50分进入低囊胚期。
The modified blastula that is characteristic of placental mammals. 胚泡转化的囊胚，为胎盘哺乳动物的特征
The formation of a gastrula from a blastula by invagination. 内陷囊胚翻转形成胚囊
The infolding of a portion of the outer layer of a blastula in the formation of a gastrula. 肠套叠在原肠胚形成过程中囊胚的外层的折叠部分
In Cyc 10mg/kg group,no significant difference were observed on the blastulation and the developmental phase of embryos. 在Cyc 10mg/kg 时，胚胎的胚泡化作用，胚胎发育时相均未受明显影响；
