In which of the areas listed would you expect to find the highest salt concentration in a flash evaporator?()
A. Distiller air ejector cooling medium
B. Saltwater heater discharge
C. First-stage internal feed box
D. Second-stage internal feed box
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现行上海生育津贴月最低标准是多少?还有单位必须为领取生育津贴职工缴纳社保吗?
因为甲醇系统有甲醇水精馏塔,所以系统中的工艺气分离器运行是否正常就不重要了。
A. 正确
B. 错误