钢管砼拱桥
concrete filled steel tubular arch bridge
Concrete-filled Steel Tubular Arch Bridge
steel pipe concrete arch bridge
concrete filled steel arch bridge
碾压砼拱坝
roller compacted concrete arch dam
大跨连拱拱桥
Long-multi-span Arch Bridge
钢拱肋系杆拱桥
tied arch bridge with steel arch rib
钢筋混凝土拱肋
reinforced concrete arch rib
钢筋混凝土肋拱桥
reinforced concrete ribbed arch bridge
钢箱拱肋
steel box girder arch rib
steel box arch ribs
steel box arch rib
steel box arch