“primitive cardiovascular system”的概念、定义、翻译、参考文献-科学参考

单词	primitive cardiovascular system
释义	primitive cardiovascular system Encyclopedia 医学心血管系统的发生释 primitive cardiovascular system原始心血管系统人胚第3～5周，胚体内逐渐形成心管、动脉和静脉，构成卵黄循环、脐循环和胚体循环组成的系统。
随便看	aerial displacement transducer aerial electrostatic spraying system aerial exploration flight aerial fiber cable aerial forest fire-protection aerial-ground integrated monitoring and management of soil and water conservation aerial hijacking aerial hypha aerial image database aerial mine aerial mycelium aerial navigator aerial perspective aerialphotogrammetry aerial photogrammetry in civil engineering aerial photograph aerial pipeline crossing aerial plant aerial refueling flight test aerial refueling system aerial remote sensing aerial ropeway aerial ropeway accident rescue aerial seed bank aerial seeding

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