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Subjects (1-2 of 2)
Mine gases
1

-- See Also the narrower term Coalbed methane


Here are entered works on methane present in a stratum of coal. Works on methane as a combustible gas formed in coal mines are entered under Firedamp
2

-- See Also the narrower term Firedamp


Here are entered works on methane as a combustible gas formed in coal mines. Works on methane present in a stratum of coal are entered under Coalbed methane
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