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椭圆的定义（第二定义）
Author:
桃篮翁
椭圆的定义（第二定义）
GeoGebra
New Resources
算柱 (兩位數)
錐體建築師
四邊形的特性
【案例】圆柱体内放置一个大球六个小球
判斷球體
Discover Resources
賺賠：例2
容積盒子
相机快门模拟
圆柱侧面的最短路径
翰林數學_2下_CH3-2_SSA
Discover Topics
Cylinder
Stochastic Process or Random Process
Solids or 3D Shapes
Natural Numbers
Functions