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简述了氧气助燃性的实验室试验过程，分别记录了１０种氧的体积分数、５种代表性物质的反应现象，提出最大可控性氧气的体积分数的设想，及可进行富氧炼铁安全使用参考范围．
The experimental process of oxygen flammability was briefly described. The volume fraction of 10 kinds of oxygen and the reaction phenomena of 5 kinds of representative substances were respectively recorded. The concept of maximum controllable volume fraction of oxygen was proposed, Safe use of the reference range.