Collection, organization and retrieval of web information are the three main functions of search engine.
搜索引擎具有网上信息收集、组织和检索三大功能。
Expert knowledge has strong guidance functions among knowledge retrieval system.
专家知识在知识检索系统中有着强大的指导功用。
Expert knowledge has strong guidance functions among knowledge retrieval system.
专家知识在知识检索系统中有着强大的指导功用。
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