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拋物面鏡的光學性質
Author:
dunst kang
Topic:
Parabola
GeoGebra
New Resources
四邉形 (四年級) 教師版
兩組對邊相等和有直角的四邊形
錐體建築師
畫出對稱圖形
球体的体积推导（优化版）
Discover Resources
銀杏葉
中一︰棱柱的總表面面積-長方體
三角形內角和
Copy of 立體圖形－截面
正弦曲线的生成
Discover Topics
Rectangle
Function Graph
Step Functions
Arithmetic Operations
Probability