розпечені вуглисті відкладення
carbon fiber / carbon fibre (CF)
valve deposits
valve head deposits
engine deposits
harmless deposits
active deposits
gum deposits
radioactive deposits
carbon
carbon dioxide
carbon monoxide
carbon sheet
carbon-composite material
residue (carbon)
carbon accumulation
carbon formation
carbon gun steel
carbon knocks
carbon miles
carbon particles
carbon-coated
carbon-removing
deposit of carbon
hard carbon
harmful carbon deposition
fluffy carbon
formation of carbon
carbon deposition
carbon dioxide fire extinguisher
carbon monoxide gas
carbon residue
carbon-dioxide gas