This article discusses the development trends of the public library service space from "resource space"to "influence space" from the perspective of linked application in library bibliographic data resources. With the changes in the information environment, libraries′ influences from "resource space" constantly weaken. Therefore, to relate the traditional bibliographic data is one of the effective ways for libraries to expand "Influence space" by using network.%文章从图书馆书目数据资源关联应用的角度出发,探讨了公共图书馆服务空间从“资源空间”向“影响空间”的发展趋势。随着信息环境的变化,图书馆“资源空间”的影响力在不断弱化,让书目数据从传统走向关联,是图书馆走向网络扩大“影响空间”的有效途径之一。
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