炭たん塵じんたんじんじ字FuriganaMeanings1nouncoal dustFine particles of coal produced during mining, transport, or handling. Often discussed in the context of explosions or respiratory hazards.炭たん塵じん爆ばく発はつを防ふせぐため、坑こう内ないには散さん水すい設せつ備びが設せっ置ちされている。Water spray systems are installed in the mine to prevent coal dust explosions.
