粘ねん結けつ炭たん

noun

coking coal; caking coal

Technical 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を作つくる。

  At steel mills, coking coal is processed at high temperatures to produce coke.