薄壁箱梁单元
element of thin-walled box girder
用预应力混凝土建成的箱形梁
prestressed concrete box girder
引桥箱形梁
box girder of approach span
箱形梁类焊接结构
welded box girder structure
曲线箱形梁
horizontally curved box girder
简支箱形梁
simply supported box girder
钢筋混凝土箱形梁
reinforced concrete box girders
reinforced concrete box beam
薄壁曲线箱形梁
thin walled curved box girders