Modern library; Information resource development; Substance level; Tactics.
现代图书馆；信息资源开发；内容层次；策略。
Ontology can describe information resource in the level of semantic and knowledge.
本体能在语义和知识层上描述信息资源。
Ontology can describe information resource in the level of semantic and knowledge.
本体能在语义和知识层上描述信息资源。
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