Specifications for geological investigation of sea-crossing highway engineering 并列题名：Specifications for geological investigation of sea-crossing highway engineering Technical specifications for geological driling of highway engineering Technical specifications for geological mapping of highway engineering 并列题名：Textbook of hydrological specifications for survey and design of highway engineering Technical specifications for utilization of construction waste in highway engineering Explanation handbook of specification of seismic design for highway engineering Technical specification for maintenance of sea-crossing highway bridges Textbook of hydrological specifications for survey and design of highway engineering