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• 如果加了電荷,甚至矢量方向,結果還是守恒的 -funnyornot- ♀ (0 bytes) () 04/21/2024 postreply 07:02:15
• 如果加了電荷,甚至矢量方向,結果還是守恒的 -funnyornot- ♀ (0 bytes) () 04/21/2024 postreply 07:02:15
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