id	keyword
brj-24631	noise
brj-24631	dust
brj-24631	wood
brj-24631	doi
brj-24631	cutting
brj-24631	levels
brj-24631	pm10
brj-24631	saw
brj-24631	teeth
brj-24631	wood dust
brj-24631	tooth
brj-24631	article
brj-24631	material
brj-24631	noise levels