results show that the microscopic concave convex fractal number of asphalt mixture surface is different with the different asphalt mixture gradations.
结果表明,沥青混合料的不同层次的微观凹凸沥青混合料表面的分维数是不同的。
thermoplastic molding is also called the plastic, the plastic molding machine will make softening plastic plate adsorbs on the surface of mold, cooling, forming a concave convex shape plastic.