冉阿让的特长便是能直登陡壁，在不易发现的凸处找出着力的地方。
To climb a vertical surface, and to find points of support where hardly a projection was visible, was play to Jean Valjean.
新板的足球，与以往往的足球有所不同，其表皮不是由14块组成，而是8块组成，因而此种表皮的足球，其粘合处的凸脊具有特殊的空气动力学特征。
The new model is made out of eight panels, compared with the previous 14, and has special aerodynamic ridges on its surface.
植物非光滑叶表形态中凸包处硬度较凹坑处的硬度大；
The hardness of convex hull is higher than that of pit portion on the sculptured leaf surfaces.
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