two-course pavement

Here air corridor built by pavement of European wood board becomes function transition joining up two spaces of upper and lower floors.

这里由欧木板铺装而成的空中走廊，是连接上下层空间的功能过渡。

Analyzed the influence of the hydrodynamic pressure on the two types of rubber asphalt gravel seal coat in use of "multi-functional asphalt mixture dynamic permeable test instrument" and "asphalt pavement materials moving water pressure flushing tester".

利用自主研发的多功能沥青混合料动态渗水试验仪及沥青路面材料动水压力冲刷试验仪，分析了动水压力对这两种结构类型的橡胶沥青碎石封层的影响。

Two cars skidded on the icy pavement.

两辆汽车在结冰的路面上打滑。

The viscosity and the aging of modified asphalt were two important factors asphalt pavement service property.

改性沥青的粘度和老化是影响其路用性能的两个重要因素.