ceilings锅炉炉顶
ceilingn.天花板;上限
ceiling and floor effect上限下限效应
ceiling of a real number不小于某实数的最小整数
ceiling coil for heating顶棚供暖盘管
ceiling price definition最高限价定义
ceiling air distribution顶棚空气分布
ceiling suspended C-arm天花板悬挂式C形臂
Ceiling and floor effects天花板和地板效应