“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	layout of heat-supply network layout of main power house of thermal power plant layout of military ship reactor system layout of museum buildings layout of pipelines transportation layout of port layout of pumped storage power station layout of railway station layout of rural settlements layout of transportation and communication layout of underground engineering layout of water conservancy planning layout order layout scheme Layout space layover layperson lay pipeline engineering in the shallow water Layzer-Irvine equation L. A. Zadeh L. A. Zadeh (1921—) Lazar Berman Lazard Lazard set Lazar Markovich Lissitzky

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