在专题搜索引擎的开发中，用于爬取相关网页的网络蜘蛛的设计与实现对搜索引擎的整体性能有较大影响。
In the development of a specialized search engine, design and implementation of Web Spider for Web pages acquirement have considerable influence on the overall performance of the search engine.
专题搜索引擎注重具体、深入的纵向服务，致力于某一特定领域内信息的全面和内容的深入，这个领域外的闲杂信息不收录。
It pay attention to the in-depth portrait service, take up with the full information of a certain special field, the rest of information unrelated with the specialize topic will not be embodied.
并结合实际工作和未来搜索引擎的发展趋势，给出了一个基于专题信息服务的智能搜索引擎的框架结构。
An intelligent searching engine framework has been for information service center on special topics by referring to serving practice and the development trends of future searching engines.
因此，开发针对某一专题或应用的搜索引擎有实用价值和现实意义。
Therefore, to develop a specific search engine has great practical value as well as practical significance.
论文以通用型搜索引擎—专题性搜索引擎—新闻搜索引擎为论述主线，详细介绍了新闻搜索引擎。
Taking the general search engine, the special search engine and the news search engine as the mainline, the paper has introduced the news search engine in detail.
论文以通用型搜索引擎—专题性搜索引擎—新闻搜索引擎为论述主线，详细介绍了新闻搜索引擎。
Taking the general search engine, the special search engine and the news search engine as the mainline, the paper has introduced the news search engine in detail.
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