An ancient region of south-west Asia in present-day Iraq, lying between the rivers Tigris and Euphrates. Its alluvial plains were the site of the ancient civilizations of Akkad, Sumer, Babylonia, and Assyria, now lying within Iraq.
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。