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电压，始终是衡量两者间电势差的物理量。
Voltage is always the measure of a potential difference between two bodies.
youdao
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电流、电压是电力系统的基本物理量。
Current and voltage are elementary parameters in power system.
youdao
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电流、电压是电力系统的基本物理量。
Current and voltage are elementary parameters in power system.
youdao