finish coat是什么意思

用法例句

Optimum design of asphaltum concrete cover-layer and interlayer;

沥青罩面层及夹层优化设计

The results indicate that SMA5 asphalt mixture is of good pavement performance and superficial performance,which makes it a suitable material for thin overlays in preventive maintenance,thus saving the construction time and decreasing the cost.

结果表明,SMA-5沥青混合料具有良好的路用性能和表面功能,可作为沥青路面预防性养护的超薄罩面层。