As there isn't much change room for head and motor efficiency, we have to take measures to increase pump efficiency and brine salinity to decrease the electricity consumption for brine extraction.
而扬程和电机的效率均无多大变化空间，要使采卤电耗较低可从提高泵的效率和卤水的含盐量方面来想办法。
This essay introduces a way of preparing sodium nitrate from brine by ion ex-change technology.
本文介绍了用离子交换从卤水中制取硝酸钠的方法。
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