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永久运动原子模型

Item Number : 95421P1

每次16.50美元
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桌面原子

是的,您的桌面由原子(您也是),但这是7" dia chrome and black model of an atomic structure (Boronish, Paul says) that keeps on turning via the magic of electromagnetics, at least until the (4) AA batteries you put in it wear out. Stands approx 9" tall on its base. 忽略盒子上的“永久运动”,除非您有永久电池。需要最小的汇编,但最大的人就不会有问题。

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