ground potential短语⁹⁶⁶⁷⁷⁺⁶ 基本例句 地电位,地电势 The test results show that the power frequency voltage withstanding characteristics of the insulation of protective relays are the key factor influencing tolerable ground potential rise. 结果表明，继电器绝缘的工频耐压特性是影响这一数值的关键因素。 cnki