| 单词 | gastrula |
| 释义 | DEFINITIVE EXAMPLES 权威例句〔archenteron〕The central cavity of the gastrula, which ultimately becomes the intestinal or digestive cavity.原肠：原肠胚的中心空腔，它最终成为肠腔或消化腔美国传统〔delamination〕Embryology The splitting of the blastoderm into two layers of cells to form a gastrula.【胚胎学】 分层，起鳞：指囊胚层分裂两个细胞层，形成一个原肠胚美国传统〔emboly〕The formation of a gastrula from a blastula by invagination.内陷：囊胚翻转形成胚囊美国传统〔epiboly〕The growth of a rapidly dividing group of cells around a more slowly dividing group of cells, as in the formation of a gastrula.外包：在胚胎的形成中，一部分分裂快的细胞的生长包围另一部分生长慢的细胞美国传统〔gastrulate〕To form or become a gastrula.形成原胚肠：形成或变成一原胚肠美国传统〔gastrulation〕The process of forming a gastrula.形成原胚肠的过程美国传统〔invaginate〕To infold or become infolded so as to form a hollow space within a previously solid structure, as in the formation of a gastrula from a blastula.套叠：折叠或变成折叠以便在原先实心的结构中形成一个中空的空间，如囊胚形成原肠胚的过程美国传统〔invagination〕Embryology The infolding of a portion of the outer layer of a blastula in the formation of a gastrula.【胚胎学】 肠套叠：在原肠胚形成过程中囊胚的外层的折叠部分美国传统〔involution〕Embryology The ingrowth and curling inward of a group of cells, as in the formation of a gastrula from a blastula.【胚胎学】 内长：一组细胞的内部或向内生长，如从囊胚到原肠胚的生长过程美国传统 |
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