The heat pump system does not need any artificial resource, it can replace the traditional heating and cooling way such as coal boiler, city heating net and centrality air-condition system.
它无须任何人工资源，彻底取代了锅炉或市政管网等传统的供暖方式和中央空调系统。
The heat pump system does not need any artificial resource, it can replace the traditional heating and cooling way such as coal boiler, city heating net and centrality air-condition system.
它无须任何人工资源，彻底取代了锅炉或市政管网等传统的供暖方式和中央空调系统。
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