纯度
... 二氧化锗GeO2 纯度purity grade 杂质含量,不大于Impurity content(≤,%) ...
反应堆的储备箱里储备了与反应堆内同等纯度和化学构成的水。
It is reveal by GC analysis that the purity of the TMP, treated by reduced pressure distillation and recrystallization in acetic ester, approximates to that of the reagent grade TMP.GC分析结果表明:采用减压蒸馏及乙酸乙酯重结晶并用的方法精制的TMP纯度接近于试剂级TMP。
The high purity manganese carbonate is prepared by the process of leaching, removing impurities and crystallizing from Guangxi's low grade manganese ore.采用广西某地低品位碳酸锰矿为原料,以硫酸浸出、浸出液除杂、碳化结晶工艺制备得到高纯碳酸锰产品。