未经处理，溶解在水中的矿物质在蒸发之后不断浓缩。
Without treatment, minerals that are dissolved in the water concentrate during the evaporation process.
什么是溶解氧就地处理？
好氧区溶解氧浓度对反应器处理效果影响的研究。
Study in the effect of the dissolve oxygen concentration in aerobic zone on the reactor.
样品可不经任何处理，水溶解后直接进样分析。
The sample solution may be directly injected in GC instrument without any treatment.
样品可不经任何处理，水溶解后直接进样分析。
The sample solution may be directly injected in GC instrument without any treatment.
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