Base course [highways] : the part of a road structure Below the wearing course and above the road Base.

基层[公路]：路面层之下路基之上的道路结构部分。

Base course [highways] : the part of a road structure Below the wearing course and above the road Base.

路床[公路]：基层之下底基之上的道路结构部分。

From my observation as a building contractor, the 'wearing course' of the new road surface could be TOO FINE or TOO SMOOTH and TOTALLY UNSUITABLE for highway use!

从我的观察，作为建筑承建商，认为这是“当然'的新路面可能太细或太顺利，完全不适合公路使用！”

Under not obvious increasing the project investment circumstances, volume method for bituminous mixture is obvious to increase the mechanics performance and the surface function as a wearing course.

按体积比设计沥青混合料的方法可以在不明显提高造价的前提下，较传统技术显著提高沥青路面的力学性能和表面功能。

However, many people don't like wearing them — and, of course, it doesn't work if you don't wear it.

然而，许多人不喜欢佩带他们——当然，如果你不佩带他们，它就不会起作用了。