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var [vɑ:(r)]
基本释义
- n. [电]乏
英英解释
1个名词解释
- a unit of electrical power in an AC circuit equal to the power dissipated when 1 volt produces a current of 1 ampere
[同] var, volt-ampere
- a unit of electrical power in an AC circuit equal to the power dissipated when 1 volt produces a current of 1 ampere