Results 221 to 225 of about 79,646 (225)

Less conventional underground coal mining

International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts, 1982
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Design of Underground Hard-Coal Mines

1988
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Slurry backfilling of an underground coal mine

International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts, 1989
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Fatalities in Small Underground Coal Mines

1983
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Methane sensing in underground coal mines

2012
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