实验结果表明：煤研石的综合利用必须依据它的自身的化学组成、结构与工艺性质来确定利用的方向。
Experiment results show: we should make full use of the coal shale according to its own structural and technology nature and the chemical composition.
作为己有百余年生产历史的老矿区，煤研石的无序堆放势必成为一种主要的地质灾害。
As an old mining district with one hundred years ago history, the disorder stack of waste rock undoubtedly becomes one kind of geological hazard.
作为己有百余年生产历史的老矿区，煤研石的无序堆放势必成为一种主要的地质灾害。
As an old mining district with one hundred years ago history, the disorder stack of waste rock undoubtedly becomes one kind of geological hazard.
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