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。
This paper introduces the dry imaging technology, the classification, the technical characteristics and the operating principle.
本文介绍干式成像技术的分类、技术特点及成像工作原理。
The active pulsing air separation is a new method for dry material classification, which is specially suitable for electronic scraps disposal and re-utilization.
主动脉动气流分选是一种新的干法分选方法，尤其适合于电子废弃物的处理与资源化利用过程。
This paper briefly describes the principle of fuzzy distance coefficient classification method and, with this method, makes cluster analysis for deep gas bed and dry bed of Dongpu depression.
本文扼要地介绍了模糊距离系数分类法的原理，并用该方法对东濮凹陷深部气层和干层作了聚类分析，与试井结论相比效果可佳。
This paper briefly describes the principle of fuzzy distance coefficient classification method and, with this method, makes cluster analysis for deep gas bed and dry bed of Dongpu depression.
本文扼要地介绍了模糊距离系数分类法的原理，并用该方法对东濮凹陷深部气层和干层作了聚类分析，与试井结论相比效果可佳。
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