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君子球
Author:
keith
New Resources
向量加减运算练习
劉徽的「割圓術」的副本
旋转和滚动摩擦
机电2班傅怀恩
机电2班吴俊强
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Bearing
三角函數
對數1228
橢圓
Hyperbola_Horizontal
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Rhombus
Exponent
Cylinder
Subtraction
Cone