embryonic hypoblast内胚层
akin hypoblast限度性通气不足
secondary hypoblast形成次级下胚层
hypoblast t下胚层
同义词:endodermentodermendoblastentoblast
N(名词) the inner layer of an embryo at an early stage of development that becomes the endoderm at gastrulation 内胚层 (Also called endoblast) [embryol]