In this example, the surface is not simply connected and any smoothed-out object looks like a torus with at least one hole.
在这个例子里,圈饼表面就是非单连通的,并且这类物体的简化就会像是至少有一个洞的曲面。
In this example, the surface is not simply connected and any smoothed-out object looks like a torus with at least one hole.
在这个例子里,圈饼表面就是非单连通的,并且这类物体的简化就会像是至少有一个洞的曲面。
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