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拋物線的光學性質
Author:
Ho-Kai Chen
GeoGebra
New Resources
球体的体积推导（优化版）
兩位數除以一位數（一）
拼砌四邊形
四邊形的特性
畫出對稱圖形
Discover Resources
缺角立方體
凹透镜
cube
圓的基本慨念的副本
A的影响
Discover Topics
Incircle or Inscribed Circle
Polygons
Stochastic Process or Random Process
Square
Hyperbola