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Keywords:
EXPLOSIONS,
FIREDAMP,
PREVENTION,
ANALYSIS,
IGNITION,
ATMOSPHERIC,
PRESSURE,
COAL,
DUST,
MEASUREMENT,
INSTRUMENTS,
VELOCITY,
AIR,
CURRENTS,
VENTILATION,
SAFETY,
LAMPS,
ACCIDENTS,
MINING,
MINES,
GAS,
GASES,
PROPERTIES,
DEATHS
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© Thomas Telford and ICE
1881
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