求翻译：随着经济和社会的发展，中央空调在商业和民用建筑中的应用越来越广泛，中央空调是现代建筑中不可缺少的能耗运行系统。中央空调系统在给人们提供舒适的生活和工作环境的同时，又消耗了大量的能源。本设计分析中央空调存在的问题，并对这些问题提出建议与对策。从中央空调冷热源、中央空调节能与冷热源选择、围护结构及其他节能优化措施等方面分析了中央空调节能的途径，以及能源合理利用和环保等问题。是什么意思？

With the economic and social development, central air conditioning is more and more widely used in commercial and residential building, central air conditioning is indispensable in the modern building energy consumption to run the system. Central air conditioning system to provide people with comfor

Along with the economic and social development, and central air-conditioning in the commercial and civil construction applications are becoming more widespread, a central air-conditioning is essential in the modern energy system running. Central air conditioning system to provide comfort to the livi

With the economic and social development, and increasingly broad application in the central air conditioning in commercial and civil construction, central air conditioning energy consumption system is indispensable in modern architecture. Central air-condi