Knowledge Collections are not designed to be an all-inclusive list of all documents dealing with the specific theme (but they can be a great starting point!)

知识集锦并非设计为包括特定主题的所有文档的全面列表(但可以作为一个很不错的着手点！)

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With SIAPI, you can also browse category trees associated with collections and display the documents that belong to a specific category.

通过SIAPI，您还可以浏览与集合关联的目录树，并显示属于特定目录的文档。

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Dewey can sort large collections into more specific groups than BISAC can.

杜威比起BISAC能够更详细的区分大量馆藏。

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He said the beauty of the new system was that specific collections can be accessed in a project which draws together a massive amount of material.

BBC: Historical secrets on the web

Projects: There are a number of thematic project collections but no specific OA projects.

UNESCO: Global Open Access Portal

Anyone can search for photos matching specific tags and create spontaneous collections of themed pictures taken by all of Flickr's users.

BBC: NEWS | UK | Magazine | I'll show you mine...