EX5012 平衡肥豬踩單車 (5MB2) $117.00 SKU: EX5012 Category: 小五 Description Description 角動量平衡物理原理令單車保持平衡不倒，裝置內的飛輪轉動令單車平衡前進 Related products EX120B 集氣瓶連蓋 125ml (1MA1 / 5MA2) $14.00 EX225 千里傳音管 (2MB1) $306.00 EX5001 千人震趣味實驗 (5MB9) $945.00 EX407 溫室小屋製成品 (4MB1) $90.00 Post navigation Previous: EX5011B 飲水鳥 – 日本 (5MA7)Next: EX5013 位能下降小木車 (5MB2)
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