In order to save energy,people usually resort to two methods. One is to improve management by arranging the daily work routine more reasonably and making better use of the facilities and equipments available. The other is to employ advanced technology. Compared with the latter,which often involves large capital investment,the former method has proved in practice to be less costly,more efficient and easier to be popularized. This paper mainly discussed the problems in the central air conditioning system in t...
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