这之后是另一个用来对齐输出字符串起始位置的对齐语句。

After that is another alignment statement for the beginning of the string that gives your output.

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通过传入一个开始搜索起始节点和一个指定正在搜索节点的xpath语句来调用getValue。

GetValue is called by passing in both a node from which to start the search, and an XPath statement that specifies the node we're searching for.

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第一个部分，起始select语句，预先定义了起始点(如组织图中的管理人员或航班中转里的起航)。

The first part, the initial select statement, predefines the starting point (e.g. the manager in an organization chart or the departure in a flight connection).

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