英语词汇“pole-changer”的意思、释义、用法解释及翻译-春雷网

词汇	pole-changer
释义	Definition of pole-changer in English: pole-changer noun A switch or key for reversing the direction of an electric current by reversing the polarity of the voltage source. Origin Mid 19th century. Definition of pole-changer in US English: pole-changer noun A switch or key for reversing the direction of an electric current by reversing the polarity of the voltage source. Origin Mid 19th century.
随便看	coping-stone copious copiously copiously copiousness copiousness copiousnesses cop it cop it cop it copita cop it sweet cop it sweet coplanar coplanarity coplanarity copland Copland, Aaron coplands co-plant Copley, John Singleton co-plotter co-ploughing cop off cop off

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Definition of pole-changer in English: