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以上来源于: WordNet
N a surface formed by inserting the smaller end of an open tapered tube through the surface of the tube and making this end contiguous with the other end 克莱因瓶 [maths]
The technology enables previously impossible shapes, like the Klein bottle above, to exist.
该技术使以前不可能的形状,像克莱因瓶以上,存在。
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