求翻译：工业上排放砷的主要有化工、冶金、炼焦、火力发电、造纸、玻璃、皮革、电子工业以及燃煤等工业活动产生含砷废水废气废渣，尤其是砷化物的开采和冶炼，常造成砷对环境的持续污染。是什么意思？

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In the industry discharges the arsenic mainly to have industry activities and so on the chemical industry, metallurgy, coking, thermoelectricity generation, papermaking, glass, leather, electronics industry as well as coal-burning produces including the arsenic waste water waste gas waste residue, i

Industrial emissions of arsenic on the main chemical, metallurgical, coking and thermal power generation, pulp and paper, glass, leather, electronics industry and coal-burning slag of arsenic-containing wastewater from industrial activities, such as waste gas, especially mining and smelting of arsen

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