Outdoor air temperature in the low places, due to lack of heat in winter for the heat required to set up auxiliary heater.
在室外空气温度低的地方，由于热泵冬季供热量不足，需设辅助加热器。
Similarly, indoor heating, also bring the same low temperature discharge outdoor, this is the winter air temperature abnormal cold reason!
同样，室内使用暖气会令室外的气温更低，这就是冬天气温异常低的原因！
Similarly, indoor heating, also bring the same low temperature discharge outdoor, this is the winter air temperature abnormal cold reason!
同样，室内使用暖气会令室外的气温更低，这就是冬天气温异常低的原因！
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