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1·As one of the coal mining wastes, coal gangue is the largest amount of emissivity in China mining districts.

煤矸石是我国矿山排放量最大的废渣之一。

2·Base on the simulation experiments, hazardous minor element from coal mining wastes are studied in relation to their forms of occurrences and contents in coal mining rocks.

在静态模拟试验的基础上，研究了有害元素从煤矸石中浸出的浓度与其在煤矸石中的含量和赋存状态的关系。

3·Based on analyzing of coal solid wastes such as refuse in heaps of Nantong Mining Corporation Ltd., this paper puts forward effective utilizing measure according to the property.

针对南桐矿业公司目前堆积在矸石山的煤矸石等煤炭固体废弃物进行取样分析，并根据其性质提出可有效利用的途经。

4·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；