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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你能够标示翅膀归结于包括中凸形和机翼的中心线护墙板。

You can specify wing attributes including camber and centerline sheeting of an airfoil.

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优化了模具结构，同时也介绍了在冲压过程中凸、凹模易开裂采取的措施和方法。

Also introduced the measure of prevent the convex and concave die cracking in course of pressing.

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