... carcino embryonic antigen 癌胚抗原 收藏 embryonic circulation 胚体循环; 胎体循环 收藏 Embryonic spinal cord 胚胎脊髓 收藏 ...
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embryonic blood circulation 胚胎血液循环
These cells around the outside form the interface, the placenta, where the maternal blood circulation meets the embryonic circulation and nutrients are passed back and forth that way in a very highly regulated and important way.
外层的细胞形成接触面,即胎盘,是母血与胎血,进行血液交换,及营养物质交换的场所,整个过程高度有序并且非常重要
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