The improvement of water quality depends on controlling the discharge of the two pollutants.
如果要改善窟野河水质必须有效控制这两种污染因子的排放。
With the improvement of water quality, metals could be released from sediment to overlying water.
在外源污染得到控制、水质得到改善的情况下，滇池沉积物会成为内在的金属污染源。
The charcoal filling has tenuity effect in the improvement of water quality were only by its absorption and interception function.
3仅靠木炭填料吸附、截留作用去除水体污染物能力有限。
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