The effects of fineness, particle appearance and adding amounts on the strengths of cement and concrete as well as the concrete rheological behavior are studied in this paper.

本文研究了粉煤灰细度、颗粒形貌及掺量对水泥和混凝土强度及混凝土流变性能的影响。

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In flotation test and production it is often the case that, the fineness of milling material is overstressed while the effect of its particle size composition on the flotation neglected.

浮选试验及生产过程中，人们往往过多强调入选物料的细度，而忽视了入选物料的粒度组成对浮选过程的影响。

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Feeding, tabletting, granulating speed, the pressure, and particle fineness are all adjustable. Granulation cage is improved to increase the yield of particles.

送料、压片，制粒速度均可调节，压力可调，成品细度可调，改进制粒转笼，增加颗粒的成品率。

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