Gases Met with in Mines; Mine Ventilation; Economic Geology of Coal; Prospecting for Coal and Location of Openings; Shafts, Slopes and Drifts; Methods of Working Coal Mines; Electric Hoisting and Haulage; Electric Pumping, Signaling and Lighting;
Publisher: Creative Media Partners, LLC
Published: 2018
Language: eng
ISBN-13: 9781377821498