With the improvement of the standards in point-source pollution control, the issues of non-point source (NPS) pollution become increasingly prominent.
随着点源污染控制水平的提高，非点源污染问题日益突出。
With the improvement of the standards in point-source pollution control, the issues of non-point source (NPS) pollution become increasingly prominent.
随着点源污染控制水平的提高，非点源污染问题日益突出。
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