“water quality grade”的概念、定义、翻译、参考文献-科学参考

单词	water quality grade
释义	water quality grade 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	iron iron and steel analysis Iron and steel E-commerce iron and steel making iron and steel scrap Iron Axle-bearings from Mianchi iron bacteria iron-based cast and wrought superalloy iron based cast superalloy iron based catalyst Iron based powder metallurgy material with high density iron based superconductor iron-based superconductor iron bath gas making iron binding globulin iron bird test of flight control system iron bridge Ironbridge Gorge Iron Cannons of the Hongwu Reign,Ming Dynasty iron carbide iron-carbon phase diagram iron carbonyl Iron Casting Site at Zhaoxiancun Iron-casting Workshop of Han Dynasty at Taicheng iron chloride

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