adjustable steel arch perimeter  钢架周长可调

arch steel gate  弧形钢闸门

arch steel tube bridge  钢管混凝土拱桥

buffed corrugated steel arch bridge  覆土波纹钢板拱桥

Buried Corrugated Steel Arch Bridge  覆土波纹钢板拱桥

cable-strut steel arch  索支承钢拱

channel steel arch  槽形钢拱

Concrete Filled Steel Arch Bridge  钢管砼拱桥

H-stub thin-walled variant steel arch centering  H型薄壁变异钢拱架

large span steel arch structural  大跨钢拱结构

Large-span Steel Arch Bridge  大跨钢箱拱桥

lengthways main steel bar  纵向主筋

long span steel arch bridge  大跨度钢拱桥

Long-span steel arch bridges  大跨度钢拱桥

main steel girder  钢主梁

mould steel steel material  型材

non-support-pier steel arch  变曲率无支墩钢拱架

oblique-span steel arch bridge  斜跨刚拱桥

prestressed spatial steel trusses  预应力空间钢荇架