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空气由78％氮,21％氧、0.94％氩等组成。在工业生产中,传统的制氮方法是深冷空气分离法。这种方法的装置复杂,操作困难,投资费用大,而且要耗费大量有色金属。
Air consists of 78% nitrogen, 21% oxygen, 0.94% argon and other components. In industrial production, the traditional method of nitrogen production is cryogenic air separation. This method of complex devices, operating difficulties, investment costs, but also to spend a lot of non-ferrous metals.