GB/T 13998-1992
AbolishedMeasuring methods of the magnetic induced longitudinal EMF, magnetic induced voltage with respect to earth, electric induced current and psophometric voltage ontelecommunication lines
电信线路磁感应纵电动势和对地电压、电感应电流及杂音计电压的测量方法
电信线路磁感应纵电动势和对地电压、电感应电流及杂音计电压的测量方法