低频: low frequency电: electricity针: needle低频电场: low-frequency current field低频电磁场: low-frequency electromagnetic field低频电磁仪: low-frequency electromagnetometer低频电瓷: low frequency electrical porcelain; low-frequency electrical porcelain低频电缆: low-frequency cable低频电缆线: low-frequency cable line低频电疗法: low frequency electrotherapy; low-frequency current therapy低频电疗机: low-frequency therapy apparatus低频电流: lfc; low frequency current低频电炉: low frequency furnace; low-frequency electric furnace; low-frequency furnace低频电路: low-frequency channel低频电压: lf voltage低频电阻: low-frequency resistance超低频电压表: super-low frequency voltmeter低频电波传播: propagation of low-frequency radio wave低频电子线路: low frequency electric circuit低频电阻焊机: frequency converter resistance welding machine甚低频电磁仪: very low frequency electromagnetical receiver; vf presentation低频电场和磁场: low-frequency electric and magnetic fields低频电感加热炉: low frequency induction furnace低频电抗放大器: low-frequency reactance amplifier低频电疗美容术: low frequency electrotherapy cosmesis