电线路通电时，周围产生一个可以影响临近线路的电磁场，随着频率的升高，其影响也越强。
When a current flows through a wire, an electromagnetic field is created which can interfere with signals on adjacent wires. As frequency increases, this effect becomes stronger.
猛禽在停留在(接地的)电线杆顶部时，能够轻易地拂到通电的线路上。
And raptors can easily brush against a live wire while settling onto a (grounded) pole-top.
当鸟栖息在通电的线路上时，它的身体在瞬间被增压，它处在和电线相同的电压下。
When the bird perches on a live wire, her body becomes charged-for the moment, it's at the same voltage as the wire.
当鸟栖息在通电的线路上时，它的身体在瞬间被增压，它处在和电线相同的电压下。
When the bird perches on a live wire, her body becomes charged-for the moment, it's at the same voltage as the wire.
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