矿煤团块 ore coal briquette
煤矿 [矿业] Coal Mine ; coal mining ; pit ; colliery
特大型煤矿 extra-large coalmine
煤矿开采 [矿业] coal mining ; Coal Mining Technology ; mining ; mining of coal mine
黄铁矿煤 brazilly coal
煤矿安全和健康 mine safety and health
煤矿安全监察系统 coal mine safety supervision system
大同煤矿 Datong Coal
煤矿工人 coalminer ; collier ; coalman ; coal miners
马家沟矿煤与瓦斯动力现象严重威胁着该矿的安全生产，掌握其机理意义重大。
To understand the mechanism of coal and gas dynamic phenomenon that seriously threatens the work safety in Majiagou Mine.
本文以石嘴山二矿煤、岩巷的掘进施工为背景，对水平巷道单巷掘进技术进行了研究。
So we construct for the background by the Second Shizuishan Mining, tunneling of the coal road and rock drift, carried on research to single tunneling technique of the horizontal tunnel.
本课题组先后在晋城矿务局凤凰山矿和淮南矿务局谢一矿煤巷进行了锚拉支架现场工程试验研究工作。
This paper is a part of experimental study achievement gained on mine sites of Jincheng bureau and Huainan bureau.
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