可作思考實驗用,實際生活中是不成立的。
My guess.
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这是关乎物体几何特性的一个定理或现象。和物质组分无关,只要系统是稠密的就可以。不能是离散的。
-大酱风度-
♂
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11/24/2023 postreply
10:41:37
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