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gas in metallurgical industry
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gas in metallurgical industry
Encyclopedia
工学
钢铁冶金基本原材料
释
gas in metallurgical industry
冶金气体
满足钢铁和有色金属材料生产需要的气体的总称。主要是空气及以空气为原料分离获得的具有特殊功能性质的单种气体,主要包括氧气、氮气、氩气等。此外,氢、氦、二氧化碳等也有应用。
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epidemic region, infected area, affected area
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epidermolysis bullosa
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