id	keyword
fumecheng-1972	material
fumecheng-1972	system
fumecheng-1972	selection
fumecheng-1972	implant
fumecheng-1972	knowledge
fumecheng-1972	expert
fumecheng-1972	feature
fumecheng-1972	feature_has_value
fumecheng-1972	material selection
fumecheng-1972	model
fumecheng-1972	expert system