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Definition of speed of a hydro-pulse jet at its passage through a layer of the destroyed firm material at carrying out of chinks.

 Bojko N. G., Gemmerling O. A. (Donetskyi natsionalnyi tekhnichnyi universytet (Donetsk, Ukraina) Definition of speed of a hydro-pulse jet at its passage through a layer of the destroyed firm material at carrying out of chinks. — 2006. — № 4(14). — pp. 88—91.
     This work is devoted to research of speed changing of impulse jet by passing it through the layer of the blasted coal and through the air space.
     Language — Russian.
     Illustrations — 4.
     Bibliography — 7 titles.