전문 번역가, 번역 회사, 웹 페이지 및 자유롭게 사용할 수 있는 번역 저장소 등을 활용합니다.
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: