The study status of dry classification theory of ultra-fine powder was reviewed, and the trend of ultrafine powder classification was prospected.
综述了超细粉体干法分级的理论研究现状，并对超细粉体分级的发展趋势进行了展望。
The interadhesion of micropartical and the dispersion mechanisms of powder were analysed, and the predispersion methods in dry classification of superfine powder were discussed.
分析了微细颗粒之间的相互附着力和粉体的分散机理，并讨论了超细粉体干式分级中的预分散方法。
The interadhesion of micropartical and the dispersion mechanisms of powder were analysed, and the predispersion methods in dry classification of superfine powder were discussed.
分析了微细颗粒之间的相互附着力和粉体的分散机理，并讨论了超细粉体干式分级中的预分散方法。
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