封闭体系,不是孤立体系,质量和能量是同一个事物的两个方面

来源: cys254 于 2010-05-12 09:33:27 [旧帖] [给我悄悄话] 本文已被阅读：次

质量溜走和能量一样,通过碰撞和辐射.

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