空调,暖气,加湿机,减湿机,风扇用英语解释怎么说

heater:any device for supplying heat,such as a hot-air blower,radiator,convector,etc
humidifier:a device for increasing or controlling the water vapour in a room,building,etc
dehumidifier:a device for reducing the moisture content of the atmosphere
fan:any device for creating a current of air by movement of a surface or number of surfaces,esp a rotating device consisting of a number of blades attached to a central hub
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