炭

saturated hydrocarbon

coaling

paper-covered frame put over a hearth or brazier to make the fire last longer

low carbonization

coal liquefaction

small charcoal

coal gas

aromatic hydrocarbon

peat soil

activated carbon filter

unsaturated hydrocarbon

high-carbon steel

carbon disulfide

carburizing; carburising; cementation

lignite; brown coal

coal mine

cement steel

subcarbide

coal seam; coal bed

coal (fuel) economizer; coal economiser

coal hoist; coal unloader

coal washing system; coal dressing machine; coal washer

second adding of charcoal to the fire (in tea ceremony)

first adding of charcoal to the fire (tea ceremony)