短語(yǔ)詞組短語(yǔ)anchored bridge crane beam 巖錨吊車梁slab bridge without beam 無(wú)梁板橋elevated bridge box beam 高架橋箱梁Bridge trussed beam 桁架梁橋Bridge strutted beam 撐架橋Bridge wooden beam 木梁橋bridge dismounting beam 橋拆裝梁docking bridge awning beam 尾橋樓天幕橫梁bridge main beam 大橋主梁 返回 bridge beam