求翻译：3、路面设计：路基在不同干湿状态下，所设计的沥青路面和水泥混凝土路面方案的比选，要求经济合理。便于施工并满足各设计规范要求是什么意思？

3, pavement design: subgrade at different wet and dry conditions, the design of asphalt pavement and cement concrete pavement program comparison and selection, requirements of economic rationality. To facilitate the construction and meet the design specifications

Roadbed : 3, road design in different dry and wet conditions, the design of asphalt and cement concrete pavement programs, request the economic options than reasonable. To facilitate construction and to meet all the design requirements

3rd, pavement design: The roadbed is doing under differently the wet condition, designs the bituminous pavement and the cement coagulation earthen road pavement plan compared to elects, the request economy is reasonable.Is advantageous for constructs and satisfies each design standard request

3, pavement design: subgrade in different States of wet and dry, the design of cement concrete pavement of asphalt pavement and comparison and selection of programmes requires economic and reasonable. Code for construction and meet the design requirements

3, pavement design: subgrade in different States of wet and dry, the design of cement concrete pavement of asphalt pavement and comparison and selection of programmes requires economic and reasonable. Code for construction and meet the design requirements