The key pollution indicators are ammonia nitrogen, petroleum, potassium permanganate index and volatile phenol.
主要污染指标是氨氮、石油类、高锰酸盐指数、挥发酚。
This article discusses the acidic potassium permanganate method of permanganate index from the following aspects: heating time, titrate temperature and titrate speed, end point of titration.
前言：文章对高锰酸盐指数加热时间、滴定温度、速度、滴定终点的控制进行了探讨。
The uncertainty of measurement was evaluated for the determination of permanganate index of water by the method of GB 11892-1989, the acidic potassium permanganate method.
对GB 11892- 1989《水质高锰酸盐指数的测定》中酸性高锰酸钾氧化法测定水中高锰酸盐指数的测量不确定度进行了评定。
The active C pool and CPMI(C pool management index) of soils under different agricultural ecosystem were discussed using potassium permanganate oxidation in this paper.
用高锰酸钾氧化法讨论了土壤活性碳库和碳库管理指数（CPMI）。
The active C pool and CPMI(C pool management index) of soils under different agricultural ecosystem were discussed using potassium permanganate oxidation in this paper.
用高锰酸钾氧化法讨论了土壤活性碳库和碳库管理指数（CPMI）。
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