“Dongdan Kingdom”的概念、定义、翻译、参考文献-科学参考

单词	Dongdan Kingdom
释义	Dongdan Kingdom Encyclopedia 历史学辽朝释 Dongdan Kingdom东丹国中国辽代初年以渤海国遗民为主体所建立的封国。
随便看	closed cycle closed cycle engine closed-cycle refrigerator closed differential closed differential field closed differential form closed differential relation closed disk closed domain closed drain system closed-easy-axis closed economy closed ecosystem closed edge sequence closed edge train closed elastic drive closed element closed embedding closed-end fund closed equivalence relation closed expression closed extension closed family of sets closed field closed filament

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。