germ layer formation

• 胚层形成

germ layer formation的用法和样例：

例句

1. Many signaling pathways play important roles in the formation of mesoderm and patterning of the neuroectoderm during early development of vertebrate embryos.
   在脊椎动物胚胎的早期发育中，多种信号途径对中胚层形成和神经外胚层分化起着重要的调节作用。
2. The mucosa layer had primary longitudinal folds,which derived of secondary and ter-tiary folds in the oviduct infundibulum and ampulla.
   黏膜层形成大小不等的初级纵行皱褶。