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擦窗神器磁鐵陣列和單面屏蔽問(wèn)題 |
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點(diǎn)評(píng)
間距加大磁性只能變小,,力與距離的平方成反比,磁鐵間塑料片是非鐵磁性物質(zhì),,其磁導(dǎo)率接近1,,除了增大了間距外,對(duì)磁性沒(méi)有任何影響
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