采用滴液法、正向渗透法和反渗湿润法分别研究了3种阴离子型湿润剂对10种硫化矿粉尘的湿润效果，比较了不同实验装置研究湿润剂湿润粉尘的相关性。
By using dropping liquid , downward penetration and upward capillary seep experiments to test three anionic wetting agents to ten dust samples of sulfide ores , their relevance of wetting effects was investigated .
正向渗透法