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汉语拼音：gān shí

也叫矸子。通常指煤生产过程中含在煤中的碎石。可从中回收少量煤炭，也可用作制砖、水泥等的原料。

• Coal-waste rocks as an industrial solid waste, is a primary environment problem in diggings due to its spontaneous combustion.

  煤矸石是我国最大的工业固体废弃物，煤矸石自燃是矿区主要的环境问题之一。

• Wardell Armstrong, another British company is in discussions with Wansheng District on equipment supply for coal gauge purification.

  另外一个英国公司WardellArmstrong现在正与万盛区讨论关于媒矸石净化设备供应问题。

• The kind of admixed coal gangue bas influence on the property of cement hydration.

  煤矸石种类对水化性能有影响。

• Burning waste heap is one of the major air pollution sources in. coalmine areas.

  煤矿自燃矸石山是矿区一大污染源。

• Normal test method is employed to explore the relationship between dry density and optimum water content of coal gangue used in daming.

  采用标准试验方法求得筑坝用煤矸石的最大干密度和相应的最优含水量。

• Stable ecological vegetation system can be finally realized in coal refuse piles through rational planning and design.

  通过合理的规划设计，最终实现矸石山稳定的植被生态系统。

• Discussion on "Strength property of RC net reinforced earth retaining structure and its experimental study"

  钢筋（煤矸石）混凝土网格式加筋土挡土结构强度特性与试验研究“的讨论”

• The destruct height of overlying strata is linearly correlation with the compression rate of gangue backfilling.

  覆岩破坏高度和矸石充填体压缩率成正线性相关。

• The chemical activator can promote the early hydration and increase the degree of reaction of coal gangue.

  化学激发剂促进煤矸石的早期水化，提高其反应程度。