这些表皮细胞在胚胎学上把源于支气管生长过程中的前内脏叫内胚层。
These epithelial elements arise embryologically from foregut endoderm in the process of bronchial tubular growth.
研究表明，原始锰矿胚层是在茅口晚期黔中台沟相带内形成的富含锰质的热水沉积岩。
The studies indicate that the original manganese protore strata is manganese-rich thermal sediments generating within platform-gully zone.
残留细胞注射部位形成畸胎瘤，瘤体组织中存在成熟的内胚层、中胚层和外胚层组织。
The residual cells were able to form teratoma at the injection site, and mature endoderm, mesoderm and ectoderm tissues could be found in teratoma tissues.
中-内胚层诱导和神经诱导都需要平面的和垂直的诱导相互作用；
Both meso-endoderm and neural induction require planar as well as vertical inductive interactions;
中-内胚层诱导和神经诱导都需要平面的和垂直的诱导相互作用；
Both meso-endoderm and neural induction require planar as well as vertical inductive interactions;
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