beam and girder floor的意思|示意

主次梁式楼板 ... beam and girder construction 主次梁式结构 beam and girder floor 主次梁式楼板 beam and slab structure 梁板结构 ...

交梁楼板 ... reinforced concrete girder slab 钢筋混凝土梁板 beam and girder floor 交梁楼板 aerated concrete floor slab 加气混凝土楼板 ...