短语词组短語deck -girder bridge 連續大梁式上承橋deck truss girder bridge 上承式桁梁橋deck lower girder 甲板下縱桁;船麪下縱桁deck plate girder bridge 上承板梁式橋deck plate girder 上承板梁orthotropic deck box girder 正交各曏異性橋麪箱形梁deck side girder 甲板邊縱桁 返回 deck girder