沥青路面的平整度是评定路面质量和使用性能的主要指标之一，公路等级越高，对路面平整度的要求也越高。
Asphalt Pavement smoothness of the road to assess the quality and performance of one of the main indicators, the higher the grade highways, Pavement on the higher requirements.
沥青路面的平整度是评定路面质量和使用性能的主要指标之一，公路等级越高，对路面平整度的要求也越高。
Asphalt Pavement smoothness of the road to assess the quality and performance of one of the main indicators, the higher the grade highways, Pavement on the higher requirements.
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