| Spontaneous combustion is characterized as the natural starting of a fire in a coal seam. The 200?C temperature required for the spontaneous combustion comes from the oxidation of pyrite and resins in the coal. Quelle: Gloria Buenavista - 122719/2006-09-24 Other Database Pages Exist for this Phrase:
Comb (Comb bind means to plastic comb bind by inserting ...)
combustion (Combustion is the burning of a material, i.e., a ...)
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