girders n. 大梁( girder的复数形式 ) 释义与例句 n. 1. plural of girder 相关短语 box girders sandwich girders plate girders lattice girders fish belly girders fishbelly girders fish-belly girders box girder [机] 箱形大梁 plate girder sandwich girder lattice girder [机] 格子桁 fish belly girder fishbelly girder fish-belly girder