这种情况会造成：锥度增加、内棱角问题、弧形向外掠出。
It will result in: increase of taper, inner corner Angle and camber is swept past outwards.
有棱角的半垫鞋垫作用于调整鞋的鞋头内腔宽窄、长短、高低。
The half padded insole with the edge angles ACTS on adjusting the width, length and height of a toe cap cavity of a shoe.
无棱角的内缘设计，便于平时的清洁，高效节水。
No angular design of the inner edge to facilitate the usual clean, efficient water-saving.
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