| 释义 | hum-bucking coilhum-bucking coil[′həm ‚bək·iŋ ‚kȯil]  (engineering acoustics) A coil wound on the field coil of an excited-field loudspeaker and connected in series opposition with the voice coil, so that hum voltage induced in the voice coil is canceled by that induced in the hum-bucking coil. |