relay coil短语¹⁰⁶¹⁰⁰⁺⁵ 基本例句 继电器线圈 Secondly, the method that connects a high speed discharge diode on the relay/span> coil and connects RC absorption circuit can extremely decrease the negative pulse voltage from relay coil. 在继电器线圈两端并接高速放电二极管和 RC吸收电路能大大消弱继电器工作时线圈两端产生的负脉冲电压； cnki