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引言: 宁波水产中转冷库一九八三年六月,将原制冷系统根据“关于对食品采用两种蒸发温度冷冻的工艺”论述的原理,进行了改造,并试
Introduction: Ningbo aquatic transit cold storage in June 1983, the original refrigeration system based on “on the food using two evaporation temperature freezing process” discussed the principle of transformation, and try