用水模型模拟研究了浸入喷粉过程中气泡与射流两种机制的主要不同之处。在同类研究中第１个引入水中粒子探测器直接测量射流的几何形状，粒子在液体中的穿透和散布以及气体在射流过程中的卷入等，实验表明，喷吹气／固比是决定喷粉过程两种机制的主要因素。 The main difference between the two mechanisms of bubble and jet in the process of dusting is studied by water model simulation. In the same kind of research, the first introduction of waterborne particle detector directly measured the geometry of the jet, the penetration and dispersion of the particles in the liquid and the entrainment of the gas in the jet. Experiments show that the blowing gas / solid ratio is the decision The main factors of the two mechanisms of dusting process.