Don't set your car's air conditioner or heater to recirculated air. Selecting the outside air option on your dashboard will reduce the number of pollutants you're circulating inside the car.
不要用汽车空调或加热器去循环空气，将操控仪表板选至外部空气会降低内部循环时产生的污染物。
This article derives a general model of heater for thermal dynamic system. Based on the general model, the thermal parameters of regenerating system can be calculated by Circulating Function Method.
文章在建立了热力系统加热器的通用性数学模型的基础上，用循环函数法对整个回热系统进行热力计算。
All the circulating water heater, heat radiator, circulating pump and water replenishing system are contained together via pipeline.
循环水加热器和散热器及循环泵装置、补水系统通过循环管配管。
The airflow circulating system can be used for an wall hanging type air conditioner indoor set, an air curtain machine, an air heater and a dehumidifier.
上述的气流循环系统还可应用于挂壁式空调的室内机、气幕机、空气加热器、除湿机中。
Therefore, in addition to large hot water system or need high water temperature of the situation, the only choice of circulating, most commonly with mandatory nature of circulating water heater.
因此，除大型热水系统或需要较高水温的情形，才选择强制循环式，一般大多用自然循环式热水器。
The circulating water heater consists of frame, electronic heater, temperature sensor, flow channel switch, valve, heating controller and other parts.
循环水加热器通常由机身、电子加热器、测温感应器、流路开关装置、出水阀、加热系统控制器等构成。
The result can explain not only the theory of enhancing the heat transfer but also preventing and cleaning the fouling in liquid-solid circulating fluidized bed exchanger heater.
所得的试验结果能够解释液—固流化床换热器的强化传热和防除垢机理。
The result can explain not only the theory of enhancing the heat transfer but also preventing and cleaning the fouling in liquid-solid circulating fluidized bed exchanger heater.
所得的试验结果能够解释液—固流化床换热器的强化传热和防除垢机理。
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