主题词的选择和使用，直接影响文献检索的查准率和查全率。
The choice and use of theme words directly affects the accuracy and completeness of data retrieval.
同时由于这些主题词间具有网状关系，可以在这种网状结构中引入超链接技术，使用户能由此沿链进行更大范围或更专指的检索。
Meanwhile, as there is a net relation among the subject words, the hyper chaining technique can be introduced into this net structure.
本文简要介绍了电子版杜威十进分类法和美国国会主题词表的特点，并从使用角度通过具体例子详尽分析了两者采用的组配技术。
The paper briefly introduces the features of WebDewey and Electronic LCSH. Meanwhile, the paper elaborates the coordination techniques employed in the WebDewey and LCSH by a variety of examples.
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