Nearly 90% of all power quality problems are voltage sags and momentary outages.

在所有的电力质量问题中，几乎90%为电压降落与瞬间停电。

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If current and voltage are fluctuating, however, other factors come into play, as the current and voltage interact with each other.

如果电流和电压变动，其它因素开始作用，因为电流和电压是互相影响的。(译者注：其它因素？)

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And these electrodes are then connected to a variable voltage power supply.

这些电极然后,和一个变压电源连接起来了。

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Now, remember we talked about these last time, voltage-gated channels are channels that would allow the passage of sodium, in this case, but they can exist in two states, a closed state and an open state.

还记得我们上节课讨论过的吧,电压门控通道是,一种可以容许钠离子通过的通道,在这一例子中 电压门控通道有两种状态,关闭状态和开放状态

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Cables wrapped in orange high-voltage warning sleeves are located under the hood of the Focus EV.

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The technology also can sit in DC-to-DC devices, which are designed to adjust the voltage and minimize power losses.

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Each glass sheet has rows of conducting wires running across it, and the two sets of wires are at right angles, so that a voltage can be applied across the liquid crystal at any chosen intersection.

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