cannel

詳細解釋：

can.nel

n.（名詞）
A bituminous coal that burns brightly with much smoke.
燭煤：一種能充分燃燒同時產生大量煙的煙煤

來源：
Perhaps short for cannel coal
可能為 cannel coal的簡寫
dialectal variant of candle coal [from its bright flame]
candle coal的方言變體 [以其明亮的火焰命名]