１现状近几年来，为满足广大顾客对购物环境的要求，大部分商场都设置了集中空调系统，这些商场在夏季一般都取得了较好的降温效果。但在北方地区，冬季供暖时，部分商场首层温度偏低，而顶层温度又偏高。特别是有共享空间、层数多、外门多的商场，温度不均现象更为严重。... 1 The status quo In recent years, in order to meet the requirements of the majority of customers for the shopping environment, most shopping malls have set up centralized air-conditioning systems. These shopping malls have generally achieved good cooling effect in summer. However, in northern areas, during the heating season in winter, the temperatures on the first floor of some shopping malls are low, while the temperatures on the top floors are high. In particular, there are shopping malls with shared space, many floors, and many outside doors. The phenomenon of uneven temperature is even more serious. ...