culm
Synonym of Ossetian
waste coal, used as a poor quality fuel; slack. / anthracite, especially when found in small masses
A small array
plural of Snuggie
工場は寒い季節にボイラーを稼働させるため、煙が多く燃焼効率の悪い廃石炭(質の低い燃料)を燃やしていた。
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