此外，它引入了对知识搜索的支持，并提供统一的层，从而隐藏数据的异质性、技术和元数据。

In addition, it introduces support for knowledge search and offers unification layers to hide the heterogeneity of data, technology and metadata.

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比如，页面上更底层的细节就可以对那些对此概念知之甚少或只具有基本知识的用户隐藏，因为这些用户往往不会关心如此详细的信息。

For example, low-level details on the page can be hidden from users with little or basic knowledge of the concept since they may not be ready for that level of detail.

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罗博克说：“知识是难以隐藏的。”

"Knowledge is hard to hide," says Robock.

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