“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	emitter barrier-layer capacitance emitter-base diode emitter coupled logic emitter-coupled logic emitter-coupled logic, ECL emitter direction-finding and location emitter dotting emitter-emitter coupled logic emitter function logic emitter junction emitter saturation of terahertz wave emitting area emitting atmosphere emitting dust mass emitting layer emitting light yield Emma Emma Eames Emmanuel Emmanuel Candes Emmanuel Chabrier Emmanuel de Martone Emmanuel Enwezor Emmanuel Kwaku Akyeampong Emmanuelle Beart

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