DIY氣球飛機

SKU: 211STK10
$9.00
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SKU: 211STK10 Categories: ,

描述

原理依據的是牛頓第三定律:作用力和反作用力大小相等,方向相反。壹個紮緊的充滿空氣的氣球壹旦松開,空氣就從氣球內往外噴,氣球則帶著飛機沿反方向飛出。

尺寸:25*6cm

材質:環保材質

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