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国外自出现石油危机以来,对节能问题是比较注意的。在食品冷藏企业方面除了从管理工作注意节能外,还从制冷装置方面进行多方面的研究。几年来制冷技术在节省能量和提高
Since the oil crisis abroad, it has paid more attention to energy conservation. In the food refrigeration enterprises in addition to pay attention to energy-saving management, but also from the refrigeration unit in many aspects of research. Refrigeration technology has saved energy and increased over the years