id	keyword
brj-24238	bamboo
brj-24238	drilling
brj-24238	density
brj-24238	resistance
brj-24238	amplitude
brj-24238	drilling resistance
brj-24238	wood
brj-24238	strength
brj-24238	average
brj-24238	modulus
brj-24238	drilling amplitude
brj-24238	resistance amplitude