A Muslim dynasty, descended from the Quraish tribe to which the prophet Muhammad belonged, that ruled Islam from c.660 to 750 and later ruled Moorish Spain (756–1031).
科学参考收录了60776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。