中国是个温度变化范围很大的国家。
具有能有效地减少出水管中热水的热量损耗，使其温度变化范围小等特点。
The electric water heater has the characteristics of effective reduction of the heat energy consumption of hot water in the water outlet pipe, small temperature change range, and the like.
对气体采用温度修正函数时，能够扩大该曲线拟合法适用的温度变化范围。
When using the temperature correction function for gases, the temperature variation range, to which the curve-fitting method applies, can be extended.
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