掛牆齒輪帶動小時鐘

SKU: K325
$15.00
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SKU: K325 Category:

材質:ABS塑料

尺寸:47mm

描述

原理:齒輪傳動原理

齒輪傳動:指壹對相同模數(齒的形體)的齒輪相互齧合將動力由甲軸傳送給乙軸,完成動力傳遞的壹種方式。齒輪:能互相齧合的有齒的機械零件。

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