当水滴下落时，他们携带电荷从一个极板到另一个极板，如果两块极板通过外回路连接，它们之间的电荷差就能用于提供能量。

As the droplets jump, they carry charge from one plate to the other; if the two plates are connected through an external circuit, that charge difference can be harnessed to provide power.

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在短路接地回路上，人体接触电气设备带电外壳的点与站立点之间存在接触电压。

There is touching voltage between body touch electric equipment case with electricity point and stand-up point in loop of short circuit ground.

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