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水中总氮
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水中总氮
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废水水质指标
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total nitrogen in water
水中总氮
水中溶解性和悬浮性的无机氮和有机氮的总量。包括硝酸根离子(NO3-)、亚硝酸根离子(NO2-)、铵根离子(NH4+)等无机氮和蛋白质、氨基酸、有机胺等有机氮,以每升水含氮毫克数计算。
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ream drilling method
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Reappearance of History and Culture Across the Time and Space:60 Years of the Art of Display in Chinese Museums
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