... 胚外膜 extra-embryonic membrane 胚外中层；胚外中胚层 extra-embryonic mesoderm 胚外体壁层 extra-embryonic somatopleure ...
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extra-embryonic mesoderm 胚外中层 ; 胚外中胚层
Fibroblasts are mesenchymal cells which are derived from the embryonic mesoderm.
成纤维细胞是胚胎中胚层起源的间叶细胞。
Blood progenitors which arise from the Drosophila embryonic mesoderm differentiate into various hemocytes, and these processes are controlled by hematopoiesis regulating factors.
果蝇血细胞祖细胞来自于胚胎中胚层细胞，然后再分化为各种血细胞，这一系列分化过程由造血因子所调控。
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