你說反了，彈射器裏最後還是直流電。交流電來回方向反轉，磁場方向也來回反轉，根本不能直接用。

來源: pop4 於 2025-09-25 11:53:45 [舊帖] [給我悄悄話] 本文已被閱讀：次

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