Frontal intersection formula indicated by azimuth angle applied in mine holing-through survey;
在煤矿开采过程中,贯通测量工作责任与作用重大。
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Study on New General Dispatching Information Communication System of Coal Mine
新型煤矿综合调度信息通信系统的研究
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振动离心脱水机与刮刀卸料离心脱水机是煤矿常用的两种离心脱水机。
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Technology of Exploring Section of Air Shaft Water and Grouting at the Deep 340~ 400 m
孙疃煤矿风井井筒垂深340~400m段探水注浆施工技术
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Application of TKD Electric Controlling Device in the Mine Hoisting System
浅谈TKD电控系统在煤矿提升系统中的应用
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This explosion last February in Northeast China killed more than two hundred people.
二月,在中国东北部煤矿爆炸就有二百多名死亡。
provided by jukuu
调查结果表明5省被调查石煤矿区土壤中238U和226Ra平均含量分别为0.37和0.24kBq/kg;
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It provided references for geological exploration and coalmine exploitation henceforth.
为该区今后的地质勘探和煤矿开采提供了依据.
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Wherever underground coalmine is exploited, the ground water discharge is accompanied.
凡是有地下煤矿开采的地区, 都伴之有地下水排放.
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本文介绍了地面预注浆施工技术在杨柳煤矿副井中的应用.
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The structure and work theory of a running-state monitor are introduced, it may alarm gas explosion.
介绍了煤矿主要通风机运转监测报警器的结构、工作原理,以及主要通风机反转,低速或停转等不正常运行状况.
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The unknown tunnels and shafts posed a serious risk to Wangjialing.
这些不为所知的地下隧道及竖井对王家岭煤矿构成严重威胁.
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Multifunction No High Voltage Switch Securement Capacitor Coal Mine Exploder
煤矿用隔爆型多功能无高压触点电容式发爆器
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