首先，查询字符串以关键词“ xquery ”打头。

First, the query string begins with the keyword "xquery."

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工具会解析这些语句，以确定语句中各个关键词及其位置是否有效。

The statements are parsed to determine whether keywords and their location in the statements are valid.

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输入关键词，以搜索希望为其打开PMR的产品。

Search for the product that you wish to open the PMR against by entering a keyword.

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