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Napredak u pridobivanju ugljena u mnogim je zemljama, posebice u Indiji, suocen s brojnim problemima. Postoje velike emisije plinova, njihove iznenadne eksplozije, požari, prasina, samozapaljenje te visoke koncentracije metana. U radu je opisano kako smanjiti ili ukloniti takve probleme, a prikazana je i nova metoda, vec primijenjena u ceskim rudnicima ugljena, koja je pokazala vrlo dobre rezultate.

NEW METHOD OF GAS DRAINAGE AS A SOLUTION OF DANGER PHENOMENA IN UNDERGROUND COAL MINES