F4I1R1E1D2A1M3P3
16 points
FIREDAMP is validvalid
a combustible gas [n FIREDAMPS]
a combustible mine gas, mainly methane, that can explode upon contact with a supply of oxygen [n -S]
a combustible gas [n FIREDAMPS]
a combustible mine gas, mainly methane, that can explode upon contact with a supply of oxygen [n -S]