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the 12 projects approved in 1983 were : methane emissions and ignition hazards on face machines ; reduced friction ignition hazard by the use of dust extractors for ventilating the kerf ; processes for eliminating ignition hazards presented by friction sparking ; water supply for shearer venturi ;
Τα 12 προγράμματα που επιλέχθηκαν για το 1983 είναι τα εξής: