id	keyword
brj-22199	sound
brj-22199	insulation
brj-22199	sound insulation
brj-22199	materials
brj-22199	foaming
brj-22199	paper
brj-22199	foams
brj-22199	fig
brj-22199	fiber
brj-22199	performance
brj-22199	effect
brj-22199	qiao
brj-22199	variable