改进机械保温车的运用、改善新造保温车的参数、降低它们的修理和维修费用,是提高易腐货物运输效果的重要潜力。现在,保温车主要是由通用车辆:机械保温列车、车组和单节机保车组成。新增加的车辆,是通过提供5辆式车组和单节机保车来实现。要经常加强动力装备程度和改善机械保温车的热工性能。如果1953～1954年制造的23辆式列车平均一辆货物车的柴油发电机总功率为 Improving the use of mechanical insulation vehicles, improving the parameters of new insulation vehicles, and reducing their repair and maintenance costs are important potential for improving perishable cargo transport. Now, insulation car is mainly composed of general-purpose vehicles: mechanical insulation train, car and single-section car. The addition of new vehicles is achieved through the provision of 5-car units and a single car. It is necessary to constantly strengthen the degree of power equipment and improve the thermal performance of mechanical insulation car. If the total diesel generator power of a freight car built by 19 trains manufactured in 1953-1954 is