美国近年来制造了200辆机械保溫車,长18,288毫米,載重72.2吨。其中100辆容积为125米~3,备装肉用。其余車內装有貨間隔墙,供运冷冻食品用。 装肉車內装置液氮冷却系統,現正考虑用氮——大气机械系統。装貨間的大气控制系統能保持氧气的成分約为1％或以下,而以氮气代替之。这能停止鮮水果和蔬菜的自然呼吸和氧 In recent years, the United States has manufactured 200 mechanical insulation vehicles, measuring 18,288 millimeters in length, carrying a weight of 72.2 tons. 100 of which volume is 125 meters ~ 3, ready-to-eat meat. The rest of the car equipped with cargo compartment wall for the transport of frozen food. Installed inside the car with liquid nitrogen cooling system, is now considering the use of nitrogen - atmospheric mechanical system. Atmosphere control system in the loading room can keep the composition of oxygen about 1% or less, and replace it with nitrogen. This stops the natural breathing and oxygen of fresh fruits and vegetables