提出了一种具有精馏装置的新型自动复叠制冷循环，并从理论角度对其机理给予分析。
A newly rectification auto-cascade refrigeration system is proposed, and its working principle is also analyzed.
试验表明混合制冷剂的配比是自动复叠制冷系统关键问题，通过控制关键点的温度可以判断混合制冷剂的最佳配比。
Test shows that the proportion of refrigerant mixture is the key, and optimization can be judged in control of key temperature.
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