| 单词 | 早期胚胎 |
| 释义 | 〔neurula〕An embryo at an early stage of development in which neurulation begins.神经轴胚：神经开始发展的早期胚胎〔yolk〕A corresponding portion of the egg of other animals, consisting of protein and fat which serve as the primary source of nourishment for the early embryo and protoplasmic substances from which the embryo develops.卵黄：其它动物蛋内的相应部分，由蛋白质和脂肪组成，用作早期胚胎的主要营养来源和胚胎由此发育的原生物质〔blastula〕An early embryonic form produced by cleavage of a fertilized ovum and consisting of a spherical layer of cells surrounding a fluid-filled cavity. Also called blastosphere 囊胚：由分裂受精卵产生的早期胚胎外形，由围绕充满液体的洞的球形细胞层组成 也作 blastosphere〔blastomere〕Any of the cells resulting from the cleavage of a fertilized ovum during early embryonic development.分裂球：在早期胚胎发育时受精卵分裂产生的任何细胞 |
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