农村公路是公路网结构金字塔的塔基，随着我国农村公路建设步伐的不断加快，农村公路的交通安全问题引起了越来越多的重视。
Rural road is the road network structure of the pyramid tower base, with the pace of rural road construction is accelerating, the rural road safety problems caused by more and more attention.
公路网合理等级结构的确定，是公路网规划的组成内容之一，也是公路网布局优化的重要组成内容之一。
The determination of the rational highway grade structure is one part of highway network planning, it also is an important content of highway network layout optimization.
我国高速公路网的建设飞速进行，对桥梁结构的要求越来越高。
With national construct of express highway quickly developing, it requires bridge structures higher and higher.
应用推荐