9Shen L J. The compound dry cleaning machine and its application, X Ⅳ International Coal Preparation Congress and Exhibition[C]. Sandton: South African Institute of Mining and Metallurgy, 2002.
10Shen L J, Chen J Z. Coal cleaning with compound dry-coal separator [A]. Proceedings of International Symposium on Clean Coal Technology [C]. Beijing:Coal Industry Press, 1997.
