“Zhengding Xian”的概念、定义、翻译、参考文献-科学参考

单词	Zhengding Xian
释义	Zhengding Xian Encyclopedia 理学正定县释 Zhengding Xian正定县中国河北省石家庄市辖县。
随便看	Central European Free Trade Agreement central European time central executive system Central Experimental and Proving Establishment central exponent central extension central extension field central extension of a group central extension of groups central extremal central factor central factorial central fiber central field central field approximation central-field approximation central field model central-field model central figure Central Film Service Central Film Studio Central Five and Seven Arts Academy central flow surface central force central force field

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。