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Kohle
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keywords:(Kohle)
Development of pulverized fuel for marine purposes during 1927-1928, C. J. Jefferson
Powdered coal for ship propulsion
FACTORS AFFECTING THE APPLICATION OF SCRAPERS AND WAGONS IN THE OPEN PIT MINING OF BITUMINOUS COAL
Hydraulic Torque Converter-Its Effect on the Power Train
Effects of treatment of goaf (strip packing or caving) on rock in immediate vicinity