These graphics can only be viewed correctly though the curved, reflective surface of the cup. [link]

这种效果一定要在弯曲的可以反射图像的杯面上才能看见。

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And the curved surface formula of smooth link between twisting curved surface and cylinder surface can be obtained.

并构造出扭转曲面与圆柱面光滑连接的曲面方程，顺利实现了两种曲面的光滑连接。

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And the curved surface formula of smooth link between twisting curved surface and cylinder surface can be obtained.

并构造出扭转曲面与圆柱面光滑连接的曲面方程，顺利实现了两种曲面的光滑连接。

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