国内基建经过近二十年的发展,总的趋势是新楼增长速度放慢,老楼逐渐出现老龄化的问题,从而导致其相关的物业管理面临着如何对商业建筑的空调系统进行更新、改造的问题。目前国内几个主要城市如北京、上海、广州、深圳,其高层大面 After nearly 20 years of development of domestic infrastructure, the general trend is that the growth rate of new buildings has slowed down, and old buildings have experienced an aging problem. As a result, their related property management is facing how to update and reconstruct the air-conditioning systems of commercial buildings. The problem. At present, several major cities in China such as Beijing, Shanghai, Guangzhou and Shenzhen