野蛮 发表于 2025-4-1 03:18:45

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formula 发表于 2025-4-1 09:48:13

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查看完整版本: Titlebook: Squigonometry: The Study of Imperfect Circles; Robert D. Poodiack,William E. Wood Textbook 2022 The Editor(s) (if applicable) and The Auth