高速公路水泥混凝土面
hightway cement concrete pavement
(?)5m×15m闭路水泥粉磨系统
closed circuitφ5m×15m cement mill system
O5m×15m闭路水泥粉磨系统
closed circuit O5 m×15 m cement mill system
闭路水泥磨
close circuit cement mill
道路水泥
portland cement for highway
road cement
highway cement
道路水泥再生
road cement concrete recycling
公路水毁
Washout of Highway
water damage on roads
Road moisture damage
Flood hazard
flood demolished road
highway water destruction
公路水土保持
water and soil conservation in highway constructio
公路水文区划
highway hydrology regionalization