id	keyword
brj-22135	wood
brj-22135	larch
brj-22135	combustion
brj-22135	fire
brj-22135	surface
brj-22135	heat
brj-22135	retardant
brj-22135	korean
brj-22135	coating
brj-22135	specimens
brj-22135	doi
brj-22135	properties