展开树中的Rules文件夹并单击选择Coordinates规则。

Expand the Rules folder in the tree and click on the Coordinates rule to select it.

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展开树，浏览至app模式的Tables文件夹下的flights表。

Expand the tree and browse to the FLIGHTS table under the Tables folder for the APP schema.

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或者展开树中的节点时，最好先显示一个子节点说明“正在提取报价……”。

Alternatively, when expanding a node in a tree, it is best to first show a child node that says something like "Getting quotes."..

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