气态污染物转化是该地区的细粒子空气污染的一个重要来源。

The main source of air pollution of small particles in that region is the transformation of SO2 to sulfate aerosol.

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气态污染物转化是该地区的细粒子空气污染的一个重要来源。

The main source of air pollution of small particles in that region is the transformation of SO2 to sulfate aerosol.

youdao