而我国的民用、公用及商用建筑的中央空调普遍存在着能耗高的问题。
Moreover, there is the problem of high energy consumption in public and commercial buildings of the central air-conditioning in our country.
简要叙述上海市商用建筑信息数据库和商用建筑能耗预测工具的研究情况。
The research on Shanghai commercial building information database and the prediction model of the energy consumption of commercial buildings is elaborated briefly.
然而这些商用建筑中目前普遍使用的基本上都是容积式的热水供应设备，许多是以电做为热源的。
However, most of these commercial building are using positive displacement hot water supply equipments, and most of these equipments use electricity as their heat sourse.
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