concavo-convex
3.Alcohol chosen as adsorbate, 13x molecular sieve、concavo-convex earth and strontium chloride selected as main adsorption materials, a series of composite adsorbents with excellent adsorption performance were prepared through mixed method.
4.The wet plating method permits to improve the adhesion of plating layers by treating the surface of polymers with an acid to generate the concavo-convex and forming the polar functional groups (see, Metal surface Compendium, Plastic Plating Techniques, page 13).
5.This article proposes in order to quickly hidden processing is carried on to multi concavo-convex polyhedron, the hierarchical structure is applied to carried on description on TOPO relations of three dimensional physique; the bidirectional link table is applied to carried on the dynamic node assignment, for enhancing the efficiency of the algorithm; when multi three-dimensional body is being hidden processing, the screen projection polygon should be carried on the overlaped eliminating confirmation and the polygon edges be carried on the computation of the intersectant points, the depth inspection, the comprehensive test and so on.

