Gangue, which is a waste from the processing of coal-mining production, has despoiled plenty of land and become one of the largest solid wastes in China.
煤矸石是在煤炭开采过程中产生的废弃物，侵占了大量土地资源，已经成为我国排放量最大的固体废弃物之一；
Gangue, which is a waste from the processing of coal-mining production, has despoiled plenty of land and become one of the largest solid wastes in China.
煤矸石是在煤炭开采过程中产生的废弃物，侵占了大量土地资源，已经成为我国排放量最大的固体废弃物之一；
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