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一、应用研究的背景(即必要性): 随着我国经济的稳步发展和人民生活水平的不断提高,各种便利调节室内四季空气的户式中央系统已愈来愈受到广大消费者的欢迎(理由在此从略,请谅!)。据统计,近几年其实际应用比例明显的呈上升趋势,且发展势头依然强劲,前景看好。的确,户式中央系统自进入家庭后所带来的综合效益是令人称赞的,可谓暖通空调领域一次质的突破。
I. Background (ie Necessity) of Applied Research: With the steady development of economy and continuous improvement of people’s living standards, various household central systems that facilitate the regulation of indoor seasonal air have become more and more popular with consumers ( Reason for this omitted, please forgive!). According to statistics, in recent years, the proportion of its actual application has obviously been on the rise, and the development momentum is still strong with promising prospects. Indeed, the integrated benefits of home-based central systems since entering the home are commendable and represent a qualitative breakthrough in HVAC.