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Explanation: Refrigerator trucks are road vehicles that are used to transport goods considered perishable when subjected to higher temperatures. Trucks of this type use several different strategies to maintain a cool temperature in the freight section of the truck, including the use of ice. A refrigerator truck is capable of transporting perishable items over long distances without any deterioration of the cargo taking place prior to reaching the appointed destination. - http://www.wisegeek.com/what-is-a-refrigerator-truck.htm