If one or more collections in your deployment are using sites or sub-sites instead of site collections as their root site, you might not be able to fully back up and restore the collections.

如果部署中的一个或多个集合使用站点或子站点(而非网站集)作为其根站点，则您可能无法完全备份和还原这些集合。

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This paper proposes a new method which can extract the useful information from the different document sites automatically based on the breadth of a sub-tree.

提出一种新的网页信息抽取方法，基于子树的广度可不加区分地对不同科技文献网站的页面信息进行自动抽取。

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