In addition, the metal film is directly plated on the air permeable base cloth to save an airtight thin film, thereby having fine air permeable and moisture permeable properties.
而且，本实用新型的复合絮片直接在透气性底布上镀金属膜，省去不透气的薄膜，因而具有良好的透气、透湿性能。
The target porosity and thickness of pavement of the permeable asphalt mixture on the basis of the factors such as reducing the runoff, the filter ability of soil base and pavement overflow.
基于减小地表径流、土基渗透能力及铺装溢流量等方面因素，设计透水性沥青混合料的目标孔隙率及铺装厚度；
According to this, the paper puts forward a kind of new permeable base material, which is called porous concrete.
对此，本文研究一种新型的多孔混凝土排水基层材料。
As a part of pavement structure, the mechanical behavior of asphalt treated permeable base (ATPB) affects the performance of roadway directly.
沥青稳定碎石排水层作为路面结构的一部分，其力学性能直接影响整个路面的使用性能。
As a part of pavement structure, the mechanical behavior of asphalt treated permeable base (ATPB) affects the performance of roadway directly.
沥青稳定碎石排水层作为路面结构的一部分，其力学性能直接影响整个路面的使用性能。
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