通过设计的调节站，该装置可以进行单级制冷循环、双级制冷循环以及复叠式制冷循环。
The system could carry on the single-series refrigeration cycle, double-series refrigeration cycle and cascade refrigeration cycle through the designed regulating station.
摘要目前复叠式制冷循环中采用的R22制冷剂属于受控物质，需要寻求新的替代制冷剂。
R22 is the main present refrigerants used in cascade refrigeration cycle, which are controlled materials and need to be replaced.
通过与R13-R22和NH3 - NH3复叠式循环的比较，可以看出CO2 - NH3的复叠式制冷循环在低温制冷条件下有明显优势。
By comparing with the R13 - R22 and NH3 - NH3 cascade refrigeration cycles, the obvious advantage of the CO2-NH3 cascade refrigeration cycle, at low temperature is demonstrated.
通过与R13-R22和NH3 - NH3复叠式循环的比较，可以看出CO2 - NH3的复叠式制冷循环在低温制冷条件下有明显优势。
By comparing with the R13 - R22 and NH3 - NH3 cascade refrigeration cycles, the obvious advantage of the CO2-NH3 cascade refrigeration...
通过与R13-R22和NH3 - NH3复叠式循环的比较，可以看出CO2 - NH3的复叠式制冷循环在低温制冷条件下有明显优势。
By comparing with the R13 - R22 and NH3 - NH3 cascade refrigeration cycles, the obvious advantage of the CO2-NH3 cascade refrigeration...
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