This article introduced the usual terms of grain size, measurement and production control for high -purity barium carbonate. it also presented some measures to control grain size in the production.
介绍了高纯碳酸钡的常见粒度表述术语，评价方法与生产控制手段，为高纯碳酸钡生产中的粒径控制提供了多条途径。
This method may be used to control and predict the solidified grain size, provide a concise means for optimizing experimental design, and be of big practical value.
这表明，用这一方法可对凝固晶粒尺寸进行控制和预测，为优化实验设计提供了简便实用的手段，具有较大的实用价值。
In order to attain nano grain size sintering materials, we must control strictly not only sintering temperature but also sintering time.
欲获得纳米尺度晶粒的烧结体材料，不仅需要采用远低于其常规的烧结温度，对烧结时间亦应严格限制。
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