id	keyword
bjos-8651901	surface
bjos-8651901	roughness
bjos-8651901	sbap
bjos-8651901	resin
bjos-8651901	polishing
bjos-8651901	air
bjos-8651901	cigarette
bjos-8651901	staining
bjos-8651901	smoke
bjos-8651901	composite
bjos-8651901	agents
bjos-8651901	coffee
bjos-8651901	wine
bjos-8651901	exposure
bjos-8651901	red