煤种、成品煤的性质等均与煤粉输送性能有关，粒度较大和粒度均匀的煤具有较好的输送性能；
Variety and nature of the finished coal are relative to it. Pulverized coal with homogeneity and bigger granularity has better transportation characteristic.
通过湿化学法合成PZT陶瓷微粉可实现粉料的高纯、超细、粒度均匀及化学成分的精确控制。
Through wet chemical synthesis, ultrafine PZT powder can be obtained with high-purity, uniform grain size and precise control of composition.
此法具有制备出的铁粉均匀，纯度高，粒度小的优点。
The production is homogenous, highly pure and of small granularity.
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