用来铺块石面路或其他区域的黑色含沥青的材料；通常覆盖在压碎的石头上。
A black bituminous material used for paving roads or other areas; usually spread over crushed rock.
此外，结合试验路的修筑，总结出一套薄层罩面硬质沥青混凝土面层的施工工艺。
In addition, combined with a large number of test road construction, the construction technology of hard asphalt of thin overlay were Summed up.
此外，结合试验路的修筑，总结出一套薄层罩面硬质沥青混凝土面层的施工工艺。
In addition, combined with a large number of test road construction, the construction technology of hard asphalt of thin overlay were Summed up.
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