超细粉体具有比表面积大、表面活性高、化学反应速度快、溶解度大等特点，药品经超细粉化后，外用或者内服时均可提高吸收效率、治疗效果及利用效率。因此，加强对超细粉碎设备小型气流磨的应用研究就显得尤其重要。“,”Since the ultra-fine powder for the fine particle size, narrow distribution, uniform quality, fewer defects, so it has larger surface area, higher surface activity, better chemical reaction, solubility, and other characteristics. It can increasingly improve the absorption ef iciency, treatment and utilization ef iciency to take or external use the ultra-fine powder of drugs. So it is particularly important to strengthen the research of smal jet mil application that is ultrafine grinding equipment.