Engineering database is the key of integration CAD system of highway, and the research of data structure is the base of engineering database.

工程数据库是集成化公路CAD系统的核心，数据结构的研究则是建立工程数据库的基础。

youdao

Engineering database is the key of integration CAD system of highway, and the research of data structure is the base of engineering database.

工程数据库是集成化公路CAD系统的核心，数据结构的研究则是建立工程数据库的基础。

youdao