“内三关”的概念、定义、翻译、参考文献-科学参考

单词	内三关
释义	内三关 Encyclopedia 历史学民族释 Inner Three Passes内三关中国古关合称，明代以北直隶（今河北、北京）境内沿内长城分布的居庸关、倒马关、紫荆关三关为内三关。
随便看	reactor period reactor physical start up reactor physical start-up reactor physical start-up test reactor physics reactor physicscal experiment reactor poison reactor poisoning reactor power reactor power coefficient reactor pressure vessel reactor-produced medical radionuclide reactor protection system reactor reflector reactor shield reactor source terms reactor srtuctral mechanics reactor stability reactor structural material reactor structure reactor support reactor thermohydraulic reactor thermohydraulic design reactor thermohydraulic experiment reactor thermohydraulics

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。