Testing method and judging rule of safety to friction spark of metallic material for coal mine
发布日期:2008-05-26 实施日期:2008-11-01
Method of determining microlithotype composition
发布日期:2008-08-07 实施日期:2009-03-01
Investigations of the raw material in hardcoal-mining; macroscopic classification and description of overburden rock
Kohlenaufbereitungsanlagen. Beurteilung der Zerfallsneigung in Wasser von Kohlenebengestein Method of Assessment of the Liability to Breakdown in Water of Materials Associated with Coal Seams (ISO 1075...
实施日期:1994-01-01
Quality Standard of Hydrogeological Exploration Projects for Coal Deposits
发布日期:2011-11-16 实施日期:2012-05-01
Investigations of the raw material in hard-coal-mining; macropetrographic classification and topographic survey of hard-coal and host rock
Testing method and judging rule of safety to friction spark of metallic material for coal mine
实施日期:2001-10-01
Emission standard of coalbed methane/coal mine gas(on trial)
发布日期:2008-04-02 实施日期:2008-07-01
实施日期:2008-12-01
Terms relating to coal mining-Coal geology and prospecting
实施日期:1996-04-01
Investigations of the raw material in hard-coal-mining; channel sample; sampling and schema of tests
Standard for exploration and evaluation of hydrogeology engineering geology and environment geology in coal beds
发布日期:2009-12-11 实施日期:2010-07-01
Capacitor discharge type exploders for coal mines
发布日期:2000-03-16 实施日期:2000-12-01
Solid mineral fuels -- Guidance on the sampling of coal seams
发布日期:1998-08-01 实施日期:1998-08-01
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