变截面空心薄壁墩
Nonuniform Thin-walled Hollow Pier
变截面空心薄壁高墩
variable section thin-walled high piers
薄壁空心墩
thin-walled hollow pier
thin walled hollow pier
hollow pier with thin wall
hollow pier
thin-walled
Hollow-thin pier
薄壁空心钢筒
thin-walled hollow steel cylinder
薄壁空心桥墩
thin and hollow wall pier
空心薄壁墩
Hollow Thin-walled Pier
Hollow Thin-walled High Pier
薄壁空间钢结构
thin-walled spatial steel structures
薄壁空箱钢壳混凝土结构
hollow thin-wall concrete box encased with steel p
航空薄壁件
thin-wall part of aircraft