“trench engineering technology”的概念、定义、翻译、参考文献-科学参考

单词	trench engineering technology
释义	trench engineering technology Encyclopedia 理学沟洫工程技术释 trench engineering technology沟洫工程技术关于中国夏商周时期灌溉、排水渠系的记录与总结研究。沟洫系统肇始于夏，发展于商，至周代趋于规范化，在实施井田制的地区逐渐形成纵横交错的农田沟洫体系。
随便看	water quality investigation water quality management water quality model water quality monitoring water quality monitoring index water quality monitoring method water quality of lake water quality of reservoir water quality of river water quality of waterbody water quality of water supply water quality protection measures water quality sampling water quality speciation water quality standard water quality standard for farmland irrigation Water Quality Standard for Fisheries water quality standard for landscape and recreation water quality standards water quality station water quality testing center water quantity measurement water reclaimed of tailings pond waterreclaimed plant water reclamation

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。