在赛车领域运用了,难道人家自找麻烦?再说,磁铁是放在底部,而不是在桶壁,底部就一层铁皮。而桶壁贴着纸质滤纸,也许这就是所谓的“thick metal。请下结论前,实际调查一番,不要凭空聪明”想象“!
在赛车领域运用了,难道人家自找麻烦?再说,磁铁是放在底部,而不是在桶壁,底部就一层铁皮。而桶壁贴着纸质滤纸,也许这就是所谓的“thick metal。请下结论前,实际调查一番,不要凭空聪明”想象“!
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