“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	self-parallel excitation system self-perception self-perimeter self personality ethics self-persuasion self phase modulation self-phase modulation self-piercing riveting self-poisoning reaction self-polar self-polar curve self-polar figure self-polarity self polarizability of rock self-polar line self-polar polygon self-polar simplex self-polar tetrahedron self-polar triad of lines self-polar triangle self-polar trilateral self-pollination self-pollution of fishery environment self-polymerization and induced aggregation Self-portrait

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。