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电压单位等于千万分之一伏特。
A unit of potential equal to one thousandth of a volt.
youdao
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闭合通道，利用一个灵敏的伏特计测量电压。
Close the channel and measure the voltage with a sensitive voltmeter.
youdao
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闭合通道，利用一个灵敏的伏特计测量电压。
Close the channel and measure the voltage with a sensitive voltmeter.
youdao