Rendering support is required if an XML document is to have a visual representation.

如果XML文档需要可视化表示，那么对呈现的支持就是必要的。

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The first feature is a visual indicator to the user that the retrieval for a specific document is continuing in the background, but has not yet finished.

第一个特性是一个可视化标志，使用户知道对特定文档的获取操作仍然在后台执行，但是还没有完成。

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The first XML document application steps you through the visual query generator tool to perform both XML and relational queries that drive all three applications.

第一个XML文档应用程序演示使用可视化查询生成器工具执行XML查询和关系查询，这是所有这三个应用程序都要用到的。

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For those who are unfamiliar with the concept, a word cloud is a visual representation of the most frequently used words in a given document or, in this case, a speech.

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