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分析了空气制冷循环在冷冻干燥装置上应用的可行性和优越性；并提出空气制冷冷冻干燥装置的实现方法，为低温下大负荷冷冻干燥装置的实施开辟了新途径。
The feasibility and superiority of applying air refrigeration cycle to freeze-drying equipment were analyzed. The realization method of air-refrigeration freeze-drying equipment was put forward, which opened up a new way for the implementation of large-capacity freeze-drying equipment at low temperature.