Based on analysis of problems in old oxygenmakingmachine, necessary measures for local transformation are adopted and expected effect is achieved.
分析了老制氧机存在的问题，有针对性地采取了必要的局部改造措施，达到了预期目的。
2
The analysis and calculation show that: the decision model of oxygen -makingmachine production program solves the problem of selecting oxygen -makingmachine in large oxygen -making system.
理论分析和实例计算表明，所提出的氧气生产方案优化决策模型解决了大型制氧系统的制氧机合理选择问题。
3
Since technology and equipment amelioration of argon system of Wanli oxygen-makingmachine has been made, the stability and operation periods of the system are improved.