Open Qiu-Weidong opened 1 year ago
https://qiu-weidong.github.io/book/geometric-primitives
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https://qiu-weidong.github.io/book/geometric-primitives
上一页 下一页 var url = 'https://cdn.jsdelivr.net/gh/Qiu-Weidong/pictures/pdf/几何原本 (徐光启译)..pdf'