短语词组短语deck -girder bridge 连续大梁式上承桥deck truss girder bridge 上承式桁梁桥deck lower girder 甲板下纵桁;船面下纵桁deck plate girder bridge 上承板梁式桥deck plate girder 上承板梁orthotropic deck box girder 正交各向异性桥面箱形梁deck side girder 甲板边纵桁 返回 deck girder