短語詞組短語DC electronic current transformer 直流電子式電流互感器electronic current transformer ect 電子式電流互感器electronic power transformer ept 電子電力變壓器Special Electronic Power Transformer 特種電子電力變壓器Electronic Power Transformer 電子電力變壓器;與一般電子電力變壓器Electronic Voltage Transformer 壓互感器active electronic current transformer 有源型電子式電流互感器optical electronic current transformer 光電電流互感器 返回 electronic transformer