This is a low energy-density device, which stores electricity directly by charging two conductive plates with static.

（和电池相比，）这是一种“低能量密度”设备，电能被直接存储在两块静止的导电板上。

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The use of DC electricity is another source of static electric fields, e.g. rail systems using DC, and televisions and computer screens with cathode ray tubes.

使用直流电是产生静电磁场的另一个原因，例如铁路系统使用直流电，电视和计算机屏幕带有阴极放射管。

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We're still close enough to the summer that the air is not just filling us up with extra static electricity, so it's a little more challenging here.

我们现在离夏天更近了,这样空气中不总是,充满额外的静电，所以这时做实验,会有一些挑战性。

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We're still close enough to the summer that the air is not just filling us up with extra static electricity, so it's a little more challenging here.

我们现在离夏天更近了,这样空气中不总是,充满额外的静电，所以这时做实验,会有一些挑战性。

麻省理工公开课 - 化学原理课程节选

On a typical graveyard shift, 60 technicians, wearing white lab coats to prevent static electricity from gumming up computer components, hunch over kaput keyboards and screens, fixing them with screwdrivers and color analyzers.

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