To counter the feature of overlaying in thin layer , this paper introduces the choice of asphalt mixture gradation used in the covering of pavement of Shi-An Espressway.
针对薄层罩面的特点 ，介绍了石安高速公路罩面沥青混合料级配的选择方法。
In the process, construction companies are draining wetlands and covering formerly vegetated soils with asphalt, concrete and housing materials.
兴建过程中，建商会排干湿地，将沥青、混凝土、房屋建材覆盖在原本生长植物的土壤上。
In the process, construction companies are draining wetlands and covering formerly vegetated soils with asphalt, concrete and housing materials.
兴建过程中，建商会排干湿地，将沥青、混凝土、房屋建材覆盖在原本生长植物的土壤上。
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