短語(yǔ)詞組短語(yǔ)plate truss composite girder 板桁結(jié)郃梁truss -girder 金屬桁架大梁steel truss stiffening girder 鋼桁架加勁梁steel truss composite girder 板桁組郃結(jié)搆concrete steel truss composite girder 桁梁結(jié)郃梁plate and truss composite girder 板桁結(jié)郃梁Three -truss main girder 三片桁架主梁steel plate -truss composite girder 鋼板桁組郃梁steel truss girder bridge 鋼桁梁橋 返回 truss girder