Based on analysis of problems in old oxygen making machine, 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。
Based on analysis of problems in old oxygen making machine, 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。
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