cod value 中文意思是什麼
cod value
解釋
化學需氧量-
The related data of water quality, including the chroma, ph value, cod and do, were tested from the water scenery in hangzhou. results showed that all the data were below the national standards of water quality for landscape and amusement
對設計的景觀水體(中江城市花園水景)經過為期5個月的水質監測表明, tp 、 tn呈下降趨勢,最終達到且好於景觀娛樂用水a類水質標準,其他各項水質指標也未超出景觀娛樂用水標準。
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