This example provides three different for loops that all iterate over the same string.
本例提供了三个不同的for循环，它们都迭代同一string。
The cure for such ground loops is to ground all equipment at a single point.
解决这种地回路问题的方法是将所有的设备在一个单点接地。
The cure for such ground loops is to ground all equipment at a single point.
解决这种地回路问题的方法是将所有的设备在一个单点接地。
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