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对于球对称问题非常容易解决

来源: 六号公路 于 2024-07-17 05:43:33 [] [旧帖] [给我悄悄话] 阅读数 : (81 bytes)
回答: 试求球体的引力 由 kde235 于 2024-07-10 23:56:19

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