錄音機 (電能轉聲能)

SKU: K604
$36.00
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SKU: K604 Category:

能量的轉化:電能-聲能

描述

錄音機,把聲音記錄下來以便重放的機器,它以硬磁性材料爲載體,利用磁性材料的剩磁特性將聲音信號記錄在載體,壹般都具有重放功能。

新版小制作,具有錄音播放功能,是小朋友們了解錄音工作原理的好幫手。

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