ceilings锅炉炉顶
ceilingn.天花板;上限
ceiling mounted fan吊扇
ceiling superheater顶棚过热器
ceiling-fan motor吊扇电机
ceiling temperature顶棚温度
ceiling fire damper吊顶防火阀
ceiling flight test升限飞行试验
ceiling restriction限额限制; 上限限制
ceiling pull switch顶棚拉线开关
ceiling plenum space天花板静压空间
ceiling lamp fixture天棚照明配件