“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	low-frequency radio telescope low-frequency resonance low frequency signal tester low frequency zonal Flow low friction oil low friction technology low friction technology for piston-liner systems low function forest low-grade fault low height service facilities low hybrid frequency low hybrid wave low hybrid waves low impact planning low-impedance low-income households assistance low-income neighbourhood in urban China low-index material low inertia motor Low Ing Sing Low-Insured low-intensity low intensity reciprocity low intensity reciprocity failure low ion

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。