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類別 : E. ???/div>

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實???

實?演示

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示?實?

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??說?

???在轉???磁鐵????以??表示??A???欲??磁鐵???轉盤??????,?????????法?第???律??產??????,???一等?磁鐵,??????????B??,???????不?轉盤快速???/p>

?考??/h2>

?活中??用

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?考???/h2>

Fundamentals of Physics, Halliday

工?人員

?旻?br /> ????br /> ???/p>

???師

?昭????/p>