常見例句The process of forming a gastrula. 形成原胚腸的過程The formation of a gastrula from a blastula by invagination. 內(nèi)陷囊胚翻轉(zhuǎn)形成胚囊The infolding of a portion of the outer layer of a blastula in the formation of a gastrula. 腸套疊在原腸胚形成過程中囊胚的外層的折疊部分The central cavity of the gastrula,which ultimately becomes the intestinal or digestive cavity. 原腸原腸胚的中心空腔，它最終成為腸腔或消化腔The central cavity of the gastrula, which ultimately becomes the intestinal or digestive cavity. 原腸原腸胚的中心空腔，它最終成為腸腔或消化腔The ingrowth and curling inward of a group of cells,as in the formation of a gastrula from a blastula. 內(nèi)長一組細(xì)胞的內(nèi)部或向內(nèi)生長，如從囊胚到原腸胚的生長過程 返回 gastrulae