“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	ε-entropy ε-expansion ε-factor ε-function ε hexanolactone ε-hexanolactone ε-mapping ε-neighborhood ε-net ε-operator ε-optimal policy ε pseudo-orbit ε pseudoorbit ε-pseudo-orbit ε-quantifier ε-simplex ε-space ε-substitution method ε-support vector regression ε-support vector regression (ε-SVR) ε SVR ε-SVR ε-symbol ε-tensor ε-tensor product

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