回收路面基层材料
reclaimed road base materials
路面基层材料
pavement basic level materials
road base materials
Base material
半刚性基层材料
semi-rigid base material
semi-rigidity base material
Semi-rigid Base Course Material
4.1管道材料规定
piping material specification
车辆—轨道—路基系统
Vehicle-track-subgrade system
城市沥青道路路面
city bitumen road surface
道路半刚性基层路面
road pavement with semi-rigid base
道路基础设施
bosic highway establishment
road infrastructure