“Four Orthodox Caliphs”的概念、定义、翻译、参考文献-科学参考

单词	Four Orthodox Caliphs
释义	Four Orthodox Caliphs Encyclopedia 历史学〔综述〕释 Four Orthodox Caliphs四大哈里发 632年穆罕默德去世后，阿拉伯帝国最初的四位继任者，史称四大正统哈里发。哈里发为阿拉伯语的音译，意为真主使者的继承者。
随便看	U set U-set Use the Language of the Motherland Correctly, Fight for the Purity and Health of the Language!（Editorial） use value use value of forest resource use value of resources U.S.FDA USFDA U.S. Federal Aviation Administration U.S. Food and Drug Administration U.S. Government Publishing Office U.S.Government Publishing Office U-shaped U-shaped cells U-shaped curve U-shaped distribution U-shaped valley Ushihara Kyohiko Ushin Ush Rebellion USIA U.S. Information Service using allusions using light in photography using of insurance guaranty fund

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。