For many causes, the salt pump always worked unstable which affect seriously the further improvment of system production, work efficiency and process index.
由于多方面的原因盐泵一直运行很不平稳，严重制约了管道化系统产量和运转率的进一步提高和熔出工艺指标的优化。
Technical renovation of acetone refining system was carried out because of unstable quality and output of acetone production.
针对丙酮产品的质量及产量不稳定的状况，对丙酮精制系统进行技术改造。
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