ceiling classification

例句：

1. 1. The company's new product line is aimed at the ceiling classification of consumers.
   该公司的新产品线旨在针对消费者群体的天花板分类。
2. 2. The classification system used by the government is based on the ceiling classification of goods.
   政府使用的分类系统是基于商品的天花板分类。
3. 3. The research team has developed a new classification method for the ceiling classification of data.
   研究团队开发了一种新的数据天花板分类方法。