The answer is, in fact, there is zero, absolutely zero probability of finding a electron here.

实际上它在这里是为零的，在这里找到电子的概率严格等于零。

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Normally when we go on this sort of fact-finding mission the reporter's notes are off the record but we asked for permission to publish them as-is.

通常来说当我们进行这样的事实探究任务时，演讲者的笔记是不允许记录的，但这次我们特意申请批准按实情报道。

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In fact, you can think of finding children on a per-type basis as a visitor operation that can be encapsulated in a visitor itself.

实际上，您可以将按照类型查找子节点的操作视为可封装在访问者自身中的访问者操作。

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