Usually on a site, there are pages that are not useful for a search engine to index, such as files in the scripts directory, administrative pages, error pages, and so on.
站点上通常都含有那些搜索引擎没必要建立索引的页面，例如脚本目录中的文件、管理页面和错误页面等等。
This directory contains the search index files produced by the Lucene search engine as shown in Figure 10.
此目录包含Lucene搜索引擎产生的搜索索引文件，如图10中所示。
But there are too many Web pages for any single directory service or search engine to organize and index.
但是对于单一导向的服务或搜索引擎中的相当多的网页是没有被组织和作了索引的。
This article makes introduction and discussion on sear ch tools, which involves search engine, subject directory meta search engine, gopher.
本文对因特网搜索工具进行了介绍和探讨，涉及到机器人搜索引擎、主题目录、元搜索引擎、浏览器等。
This article makes introduction and discussion on sear ch tools, which involves search engine, subject directory meta search engine, gopher .
本文对因特网搜索工具进行了介绍和探讨，涉及到机器人搜索引擎、主题目录、元搜索引擎、浏览器等。
This article makes introduction and discussion on sear ch tools, which involves search engine, subject directory meta search engine, gopher .
本文对因特网搜索工具进行了介绍和探讨，涉及到机器人搜索引擎、主题目录、元搜索引擎、浏览器等。
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