7HUSTER A. Influence of the Filling Process on the Energy Conversion Quality of Dry Running Screw-type Engines[A]. VDI Berichte,2002,1715:209--237.
8VETTER G, RICKE H. Continuous Metering of Bulk Materials with Metering Screws[J]. Powder Technology, 2001, 26(5) :705--717.
9ROBERTS A W. The Influence of Granular Vortex Motion on the Volumetric Performance of Enclosed Screw Conveyors[J]. Powder Technology, 1999,1(5):56-- 57.
