“水质等级”的概念、定义、翻译、参考文献-科学参考

单词	水质等级
释义	水质等级 Encyclopedia 工学水环境质量释 water quality grade水质等级依据不同水域环境的功能和保护目标，按照功能高低依次划分的等级。又称水质级别。
随便看	explosion hazard area of oil depot explosion index explosion induced by beam radiation explosion induced by discharge explosion injuries explosion injury explosion limit explosion of pulverized coal preparation system explosion power explosion power index explosion-proof explosion-proof and pressure relief devices explosion-proof blanket explosion-proof design explosion proof device explosion-proof electric apparatus explosion-proof instrument explosion-proof motor explosion-proof static eliminator for human body explosion-proof tools explosion-proof wall explosion-resistant explosion-safe explosion safety assessment explosion safety/protection

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。