对于含泥质较多，低渗透性适宜酸浸矿石，可通过制粒的方法来改善其渗透性。
For the fitting acid-leading ores with much clay and low infiltration, its infiltration can be improved by the method of making grain.
本文介绍了一步制粒法的优点，重点探讨了影响一步制粒的9项主要因素及控制方法。
This paper introduces the advantages and principal procedures of One-step-granulating method and mainly discusses the 9 major factors and control methods that affect One-step granulating.
方法采用固体分散载体和阻滞性高分子材料，使用固体分散与球晶制粒相结合的技术制备水飞蓟宾缓释微球。
Methods Sustained-release silybin microspheres were prepared by the spherical crystallization technique with solid-dispersing and release-retarding polymers.
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