采用氟里昂制冷，安全可靠，温度自动控制，冷冻效率高。
介绍了氟里昂制冷系统中，在压缩机和蒸发器的各种使用情况下，制冷管道的回油设计。
Provide oil back design of refrigeration piping under various conditions of evaporator and compressor in freon refrigeration system.
以跨临界CO2为工质的制冷系统具有与氟里昂系统相当的效率，适合应用于汽车空调系统和热泵系统。
The trans-critical CO2 air conditioning system has almost the same efficiency as the halocarbon system, and is suitable to be used in automotive air conditioning system and heat pump system.
以跨临界CO2为工质的制冷系统具有与氟里昂系统相当的效率，适合应用于汽车空调系统和热泵系统。
The trans-critical CO2 air conditioning system has almost the same efficiency as the halocarbon system, and is suitable to be used in automotive air conditioning system and heat pump system.
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