In contemporary society, refrigeration technology has infiltrated almost every production technology, the field of scientific research, and improve the quality of life of human beings play a tremendous role. Life, widely used in food cold refrigeration, cold storage, transport refrigeration, air-conditioning and fitness, sports create artificial skating rink, such as industrial production, to provide the necessary environment for the production of the constant temperature and humidity environment, the low temperature of the material , the low temperature for the parts fit; agriculture and animal husbandry, crop seeds on the low-temperature processing; construction, the use of refrigeration achieve permafrost mining earthwork; modern medicine is also inseparable from refrigeration, deep cryogenic bone marrow and peripheral blood stem cells, low-temperature operation of anesthesia; refrigeration technology in fields such as microelectronics and advanced science and technology, new materials, and space development, biotechnology research and development plays an important role. It can be said that modern technological progress is accompanied by a refrigeration technology to develop.
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