Cite designates a source document reference for some text, typically some kind of a quotation.

cite指明某些文本的源文档引用，通常是某种类型的引用。

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Note: Escape characters (backward slashes) are included before quotation marks that are part of the XML document (such as the XML version number in the example below).

注意：转义字符(反斜杠)包含在是XML文档一部分的引号之前(比如下面例子中的xml版本号)。

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Quotation Index is a new kind of retrieval means which is based on the document citation relations.

引文索引是建立在文献引证关系之上的一种新型检索工具。

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