ceilingn.天花板;上限
ceiling crab吊架起重绞车
ceiling hole顶板炮眼
ceiling rate[经] 最高汇率, 汇率上限
ceilingtrack天轨
ceiling load顶棚荷载
ceiling hold顶支架
ceiling void吊顶空间
ceiling jack平顶千斤顶
ceiling grid吊顶格栅
ceiling lamp吊灯