id	keyword
fumecheng-7710	dea
fumecheng-7710	method
fumecheng-7710	efficiency
fumecheng-7710	forklifts
fumecheng-7710	model
fumecheng-7710	criteria
fumecheng-7710	analysis
fumecheng-7710	results
fumecheng-7710	marcos
fumecheng-7710	fucom
fumecheng-7710	value
fumecheng-7710	criterion