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介绍了国外一种同时既用变压吸附法生产普通氮气和高纯氮气,又用一台低温制冷机生产普通液氮和高纯液氮的综合流程。图1。
A comprehensive process of producing common nitrogen and high purity liquid nitrogen both by common pressure nitrogen and high purity nitrogen at the same time with a cryogenic refrigerator is introduced. figure 1.