面包屑 首页 NKOS资源库 NKOS 本体 定义 ssci_ThesaurusAndOntology.pdf Robert Neches_Enabing Technolgy for Knowledge Sharing.rar Gruber1995_Toward principles for the design of ontologies used for knowledge sharing.pdf Borst_Construction of engineering ontologies for knowledge sharing and reuse.pdf Ontology_概念及其在数字图书馆中的应用.pdf What is an Ontology_Gruber.doc