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不规则平移
Author:
汪晓应
New Resources
錐體建築師
柱體建築師
球體建築師
三位數除以一位數（一）
異分母分數減法
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DSE Circle-ACT03C Relationship Between Arcs and Angles at Circumference
intersection: surface-surface, curve-curve
Angles between line and planes in a cuboid
雙曲線3--等軸法
立方体的11种展开图
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Upper and Lower Sum or Riemann Sum
Differential Equation
Square
Symmetry
Scalene Triangles