黎曼01 微積分講義01
回答: 黎曼01 对于空间中任意给定的一个曲面,可以通过弯曲、拉伸或压缩来连续地改变它的形状,弯曲、拉伸或压缩这个曲面而保持它每一点的角
由 marketreflections
于 2011-12-17 20:33:54
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