ceilings锅炉炉顶
ceilingn.天花板;上限
ceiling/wall lights顶/壁灯
ceiling light diffuser顶灯散光罩
ceiling-floor effect上限-下限效应
ceiling classification云幂分类
ceiling projector light天棚投光灯
ceiling light packaging吸顶灯包装
ceiling composite price综合价格的上限
ceiling-embedded type天花板嵌装式
ceiling inspection hole顶棚检查孔
ceiling radiation damper吊顶散流阀