Explanation handbook of specification of seismic design for highway engineering Explanation handbook of specifications for design of highway subgrades Application handbook of specifications for drainage design of highway Textbook of hydrological specifications for survey and design of highway engineering Hydrological specifications for survey and design of highway engineering 并列题名:Hydrological specifications for survey and design of highway engineering Application handbook of technical specification for construction of highway subgrades Application handbook of test methods of materials stabilized with inorganic binders for highway engineering Technical specifications for geological driling of highway engineering Application handbook of technical specification for construction of highway cement concrete pavements