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MSHA approved intrinsically safe microseismic systems for use in coal mines were installed at two sites in Eastern China. The ability to monitor microseismic activity ...
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Microseismic Monitoring of underground coal mining in Anhui Province, China MSHA approved intrinsically safe microseismic systems for use in coal mines were installed ...
Underground coal mining mainly include the process of drift, slope, and shaft mining, and actual mining methods include longwall and room and pillar mining.
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Watch video· "Monbiot meets Shaun Spiers" - 'environmental protection' leader confrontated about favoring coal mines over windfarms (Jan.2009)
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