reinforced concrete trussed bridge 钢筋混凝土桁架桥
trussed arch bridge 桁架拱桥
trussed-box-girder bridge 箱式桁架桥 ; 箱形桁架桥
trussed arch bridge detail 桁架拱桥
trussed box girder bridge 箱形桁架桥
trussed combination arch bridge 桁架组合拱桥
steel trussed arch-beam bridge 钢桁架拱梁组合桥梁
steel trussed frame arch bridge 钢桁架拱桥
reinforced-concrete trussed arch bridge 钢筋混凝土桁架拱桥
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