oxygenousadj.氧气的；含氧的；产生氧气的oxygenn.氧；氧气oxygen-free copper rods无氧铜管oxygen heterocydclic ring含氧杂环oxygen analysis equipment氧分析器oxygen-producing device制氧设备Oxygen enriching membrane富氧膜oxygen-nitrogen mixture氧氮混合气oxygen generating station制氧站oxygen-evolving complex生氧性复合物Oxygen turbine compressor氧气透平压缩机oxygen enhancement effect氧增强效应