拉線明輪船 (輪船的行駛原理,彈性勢能的作用)

SKU: K346
$25.00
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SKU: K346 Category:

材質:ABS塑料+其他

尺寸:60*133mm

描述

認識齒輪轉動

齒輪傳動是指壹對相同模數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。

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