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n.
- 1. 囊胚
网络例句
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- 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 fluid-filled, central cavity of a blastula.

囊胚腔囊胚中充满液体的中心的洞 - double-walled stage of the embryo succeeding the blastula.

囊胚发育之后的双层胚胎。 - The formation of a gastrula from a blastula by invagination.

内陷囊胚翻转形成胚囊 - The outer layer of a blastula that gives rise to the ectoderm after gastrulation.

外胚层囊胚的外层,在原肠胚形成之后生后外胚层组织
