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勒洛四面体（拼接法）
Author:
孟宝兴
GeoGebra
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AI 訓練教室
三半圓間的相切圓(Codex╱2026.10.07)
長方體平面投影 (Codex版)
美國國旗 (Codex, 2026.10.06)
幾何作圖題：切三圓（題目）
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group m
max_error
鉛筆畫圓
带电粒子——旋转圆
方块堆叠(cube))
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Equations
Mode
Division
Interest Calculation
Prism