短語詞組短語Plate -girder Joist 工字板梁Flitch plate -girder 鋼木夾合梁plate e girder bridge 板梁橋plate e girder 板梁deck plate steel girder 上承式鋼板梁plate steel girder 鋼板梁plate box girder 板箱形鋼梁laminated plate -girder 疊合式板梁plate -girder 鐵板梁;板梁 返回 plate girder