本文从传统的检索工具《生物学文摘》、《化学文摘》、《工程索引》入手,介绍各自的概况、结构以及它们的网络版的特点。由此分析在网络环境下检索工具的服务方式和特点,并探讨新的检索方法,以此来提高人们检索信息的能力。The paper start with the conventional search tools:, , . It introduce general situation, structure and the characteristic of network. And analyse serve mode and characteristic of the search tools, and probe into the new of search ways.In order to advance the search information of ability of the people. |
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