【动画】在四维空间旋转三维轮胎, Bar 四維幾何學, Purasbar

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There are currently 7 posts.

	Floor 1 4Der 4/21/11 13:06
	Floor 2 4Der 4/21/11 13:07 出自英文维基百科：http://en.wikipedia.org/wiki/Four-dimensional_space
	Floor 3 yaoliding 4/22/11 17:30 完美环面，相当于∞-∞ Duoprism
	Floor 4 4Der 4/22/11 18:56 影片第八集有
	Floor 5 4Der 4/22/11 18:56 回复：4楼在末尾部分
	Floor 6 yaoliding 4/22/11 19:10 当年我完全不理解那是什么来的，现在也讲不清那集其实是讲“曲体”（曲面的三维类比）
	Floor 7 巨大八爪鱼 8/29/14 17:12 回复：3楼我一直想弄懂什么是完美环面

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