harmful element in coal
... [总]酸性基 acidic groups 煤中微量元素 trace element in coal 煤中有害元素 harmful element in coal ...
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煤中有害元素的环境地质问题,主要是燃煤对大气、土壤、水域的污染。
About environmental geological problems of harmful elements in coal primarily involved pollutions of atmosphere, soil and water resources by combustion of coal.
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