如果Web站点是刚刚建立的，而且在搜索索引中没有其他站点链接到它，那么搜索引擎还没有发现它。
If your Web site is just getting off the ground and no other site in the search index links to yours, the search engines haven't discovered it.
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。
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。
This directory contains the search index files produced by the Lucene search engine as shown in Figure 10.
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