动圈式扬声器是把电信号转换成声信号的一种装置。图甲是扬声器的构造示意图，它主要由固定的永久磁体、可以活动的线圈和锥形纸盆构成。 Sketch Coloring Page

动圈式扬声器是把电信号转换成声信号的一种装置。图甲是扬声器的构造示意图，它主要由固定的永久磁体、可以活动的线圈和锥形纸盆构成。 Template

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tomski动圈式扬声器是把电信号转换成声信号的一种装置。图甲是扬声器的构造示意图，它主要由固定的永久磁体、可以活动的线圈和锥形纸盆构成。 coloring

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