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【原创文章】斜面体与桌面间的静摩擦力 [Picture]

巨大八爪鱼 9/3 巨大八爪鱼 (Clicks/Replies: 1,098/1)

【案例】直接用向量表示和计算物理量 [数理基础] [Picture]

巨大八爪鱼 12/16 巨大八爪鱼 (Clicks/Replies: 1,406/3)

这是一张分形图片 [Picture]

巨大八爪鱼 11/9 血染图腾 (Clicks/Replies: 1,012/3)
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