“water conservancy projects during the Roman Empire Era”的概念、定义、翻译、参考文献-科学参考

单词	water conservancy projects during the Roman Empire Era
释义	water conservancy projects during the Roman Empire Era Encyclopedia 工学[古代区域水利]释 water conservancy projects during the Roman Empire Era古罗马水利工程古罗马人建造的用于防洪、供水、排水和灌溉的水利工程。
随便看	background glow backgrounding background intensity background investigation background limited detectivity background mass spectrum background mathematics background mode background monitoring background music background noise background-noise level background optical and electromagnetic characteristic background projection process background radiation background radiation intensity background radio radiation background rejection background source background source function background star background subtraction Background survey background temperature background value of elements in soil

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。