ceilings锅炉炉顶
ceilingn.天花板;上限
ceiling reinforcement plate顶壁加强板
ceiling model examining lamp天花板式(医用)检查灯, 悬(垂)式检查灯
ceiling pipeline arrangement吊顶管线排列
ceiling mounted heating coil顶棚供暖盘管
ceiling mounted air diffuser顶棚散流器
ceiling suspended dental unit天轨悬吊牙用X线机