施工机械化
construction mechanization
Mechanized construction
施工机械与机具
construction devices and controls
施工机械设备
construction mechanical equipment
construction machineries
隧道施工机械
tunnel construction machinery
施工机械费
cost of constructor’s mechanical plant
公路施工机械
Construction machinery of the highway
线路施工机械
track construction machinery and equipment
轨道施工机械
track construction machinery