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The author has 3 posts.

圆可以展成直线,球体为什么就不能展成平面?

Floor 1 魔法绿骑士 6/17/11 18:41
rt
Floor 3 魔法绿骑士 6/17/11 19:33

回复:2楼

那应该怎样展才行?

网上说球面不可展。

Floor 5 魔法绿骑士 6/28/11 22:20

回复:4楼

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