“Ivan Asen Ⅱ”的概念、定义、翻译、参考文献-科学参考

单词	Ivan Asen Ⅱ
释义	Ivan Asen Ⅱ Encyclopedia 历史学保加利亚历史释 Ivan Asen Ⅱ伊凡·亚森二世（？～1241）保加利亚第二王国国王（1218～1241）。
随便看	equivalence ratio equivalence ratio versus temperature map equivalence relation equivalence sign equivalence test equivalence theorem equivalence trial equivalence trials equivalency equivalency of concentration equivalency of current-carrying coils and magnetic dipoles equivalent equivalent affinity equivalent affinity; equiaffine transformation equivalent air layer equivalent algorithm equivalent antenna equivalent approach equivalent arc equivalent background illumination equivalent bases equivalent basis equivalent bordisms equivalent breadth equivalent bundle

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。