How many degrees is it inside the car when it's minus 5 degrees Celsius outside?

[RosalieLynn]

When it's minus 5 degrees Celsius outside, it's 3 degrees Celsius inside the car. Car insulation materials: Fiberglass, heat-resistant, thermal insulation. Refrigerated truck: It is a type of "specialized truck". It is specifically used for transporting perishable goods such as meat, fish, fresh fruits, and vegetables. These goods require maintaining a certain temperature, humidity, and ventilation conditions during transportation. To prevent the internal temperature from being significantly affected by external temperature changes, the vehicle body is required to have good thermal insulation performance. The body of a refrigerated truck is structurally equipped with insulation materials to reduce heat exchange between the inside and outside of the vehicle. The vehicle is equipped with cooling devices for temperature reduction, heating devices for temperature increase, ventilation devices for maintaining suitable temperature, humidity, and air exchange, as well as temperature measurement equipment.