voltage box分压箱voltagen.电压voltage - type inverter电压型逆变器voltage compensation type电压补偿voltage reference element电压参考元件voltage-typed converter电压源型换流器voltage regulation system调压系统voltage regulation factor电压调整系数,电压调整率voltage spectrum analyser电压频谱分析仪voltage detection circuit电压探测电路voltage stabilizing diode稳压二极管voltage-frequency ratio压频比