salt refining meaning in Chinese

盐水精制

And the report has passed the analysis to ionic membrane caustic soda salt refining handicraft , has suggested that controlling a scheme comparatively rationally , calculation and driving force having carried out the ability choosing a type , circulating to the regulating valve on various appearance ( the temperature , pressure , rate of flow , liquid place , component ) supply a problem waiting for aspect to have done one by one also expound
本报告通过对离子膜烧碱一次盐水精制工艺的分析，提出了较为合理的控制方案，并对各种仪表（温度、压力、流量、液位、成分）进行了选型，对调节阀流通能力计算及动力供给问题等方面也都一一作了阐述。