electrical potential differenceiˈlektrikəlpəˈtenʃəlˈdifərəns短语¹⁸⁰⁰⁹⁸⁺¹ 基本例句 电位差 As the current through the varistor all the resistance wire, so A, B are any two points between the electrical potential difference. 由于电流通过变阻器的全部电阻丝,故 A、 B之间任意两点都有电势差。 chem17