根据大型商场中央空调系统运行原理，建立了商场“冷负荷需求模型”，提出了节能设计与节能运行控制策略。
According to the operation-principle of central air-conditioning system, the author built a market's "cooling-load need model" and put forward energy-saving design and operation-control strategy.
近几年，我国有许多大型舒适性中央空调系统投入运行。
In recent years there are many central air conditioning systems running in our country.
近几年，我国有许多大型舒适性中央空调系统投入运行。
In recent years there are many central air conditioning systems running in our country.
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