粘ねん結けつ炭たんねんけつたんMeanings1nouncoking coal; caking coalTechnical term used in coal industry and metallurgy for coal that softens and agglomerates when heated, suitable for coke production.製せい鉄てつ所じょでは粘ねん結けつ炭たんを高こう温おんで処しょ理りしてコークス