The authors developed an air pollution dispersion system(APDS)with elevated Gauss dispersion model to simulate the impact of industrial point source pollution on region air quality.

开发了一个基于高斯扩散的大气 污染扩散空间信息系统，用于模拟 工业点源 污染对区域大气质量的影响。

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Point source pollution comes mainly from industrial facilities and municipal wastewater treatment plants.

点源污染主要来自工业工厂和城市废水处理厂。

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However, the MPs point out that the main source of lost tax involves smuggling on a much larger, industrial scale.

BBC: Bottles