deep bucking current attenuation 深侧向屏蔽电流的衰减

shallow bucking current attenuation 浅侧向屏蔽电流的衰减

Direct Current Attenuation Method 直流衰减法

attenuation direct-current component 衰减直流分量

direct current attenuation 直流衰减

AC current attenuation survey 交流电流衰减法

current attenuation inspection method 电流衰减法

alternating current attenuation survey 交流电流衰减法

attenuation curve in direct current 直流衰减曲线