circulation of blood between the embryo and the yolk sac
vitelline circulation 30秒了解
- (noun) circulation of blood between the embryo and the yolk sac
Meanings
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1
noun circulation of blood between the embryo and the yolk sac
Summary
circulation of blood between the embryo and the yolk sac
- (noun) circulation of blood between the embryo and the yolk sac
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