The dual variable FEM formulation can avoid the difficulty of C1 continuity condition.

对偶变量有限元推导可避免所谓的C1连续性问题。

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Tangential continuity [C1 or G1] is the next level, defined by a circular arc creating a relatively smooth transition between these surfaces.

相切(Tangential)连续性[c 1 or g 1]则是下一个层次，指的是建立一个连接这些表面间的平滑的圆弧过渡。

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