如图所示是扩音器的原理示意图.当人们对着话筒讲话时产生的声波使膜片以及与之相连的线圈一起振动.线圈在磁场的这种运动能产生随着声音变化的电流 Template




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tomski如图所示是扩音器的原理示意图.当人们对着话筒讲话时产生的声波使膜片以及与之相连的线圈一起振动.线圈在磁场的这种运动能产生随着声音变化的电流 coloring