物質不滅,能量守恒,能量隻能從一種形態轉換成另一種形態,既不能無緣無故地產生,也不能無緣無故地消失……科學素養太差！

來源: 晶體管發射極於 2022-06-21 21:23:00 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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