“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	ground propagation ground proximity warning system ground radiation ground receiving station ground receiving station for meteorological satellite ground release test of airborne ground remote sensing ground resolution ground resolution principle ground resonance test ground ring ground road ground robot ground roll ground rolling dragon ground rope ground row ground-satellite communication ground screen ground search & rescue groundsel ground set ground sharks ground shock ground sloth

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