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- convex lens
- pleat
- cortical
- abut
- endothermic
- convex and concave
- convex sets
- convex function图像
- convex函数
- duffel bag
- satiation
- hardening
- convex cone
- sloping
- concave和convex图形
- convex concave
- vertice
- convex mirror
- polygon
- eyelet
- convex curve
- convex function
- concave
- convex hull
- convexconcave
- convexcurve
- convexfunction
- jointlyconvex
- convexlens
- convexhull