hazardous polluting substances 有害的污染物质
list of polluting substances 污染物清单
polluting substances
污染物质
以上为机器翻译结果，长、整句建议使用 人工翻译 。
This paper introduces main acid polluting substances and their harm, as well as the characteristics of man-made wetland treating system and their mechanism and function of treating mine wastewater.
文章介绍了酸性主要污染物及其危害，人工湿地处理系统的特点及利用人工湿地系统处理酸性矿山废水的机理与效能。
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