First, most Chinese university dorms don't have any central heating systems or air-conditioning units.
首先，大多数中国大学宿舍没有任何中央暖气系统或空调设施。
The heat transfer between residential units is a difficult technical problem in heat metering of central heating systems.
户间传热是集中供暖热计量中的一个技术难题。
Due to their simplicity, fan coil units are more economical to install than ducted or central heating systems with air handling units.
由于其简单，安装风机盘管机组更经济比导管或中央供暖系统空气处理单元。
Chinese northern cities commonly adopt the central heating in winter. However, since the heating systems are not equipped with automatic control devices, the efficiency of heating systems is low.
在冬季，北方普遍采取集中供暖的方式，但由于缺少自动控制系统，供热效率较低。
And some day the niftiest of these "smart meters" could even turn central-heating systems or air conditioners up or down as power prices rise and fall.
将来智能化程度最高的电表甚至能自己按照一天中电价高低的变化来关小或开大中央暖气和空调。
There are 68 types of rooms, equipped with central air-conditioning and electronic door lock systems, and fire control center, using solar hot water systems and electric auxiliary heating device.
内设中央空调和电子门锁系统以及消防监控中心，采用太阳能供热水系统及电辅加热装置。
There are 68 types of rooms, equipped with central air-conditioning and electronic door lock systems, and fire control center, using solar hot water systems and electric auxiliary heating device.
内设中央空调和电子门锁系统以及消防监控中心，采用太阳能供热水系统及电辅加热装置。
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