In contrast with point source pollution, non-point pollution is difficult to control and prevent because of its randomicity, intermittence, hysteresis and complexity.
与点源污染相比，非点源污染具有随机性、间歇性、滞后性、复杂性等特点，不易控制和治理。
With the point source pollution being reduced gradually, the non-point source pollution has become the main factor of the water pollution and tends to be worse.
随着点源污染得到逐步治理，面源污染已成为水体污染的主要原因，并有逐渐恶化的趋势。
AGNPS (agricultural non point source) model is a computer model specialized for predicting and evaluating the agricultural non point source pollution of a watershed.
AGNPS模型是美国研制的、专用于模拟小流域土壤侵蚀、养分流失和预测评价农业非点源污染状况的计算机模型。
In developed countries, point source pollution has been efficiently controlled and urban non-point source pollution caused by rainfall has become the main causation of water pollution.
在发达国家，点源污染基本得到有效控制，城市面源污染成为水体污染的主要因素。
The paper here analysed the danger of non point source pollution after the discussing on the courses of non point pollution of water source and presented some prevention a…
文章在讨论水源地非点源污染来源的基础上，分析了水源地非点源污染的危害，提出了非点源污染的防治对策。
The paper here analysed the danger of non point source pollution after the discussing on the courses of non point pollution of water source and presented some prevention a…
文章在讨论水源地非点源污染来源的基础上，分析了水源地非点源污染的危害，提出了非点源污染的防治对策。
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