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Beskrivning
Rapid growth in water requirements makes it necessary to increase the amount of water drawn from rivers. The dams necessary for capturing river water have to be built to resist damage when large floods occur, and an idea of the possible destructive power of floods is given by the front photograph.
Professor Dai Guoquan, Safety Inspection Bureau, Ministry of Coal Industry, Beijing, P.R.C.
Innehållsförteckning
Part I Ventilation and Gas A. Ventilation B. Gas C. Outburst Part II Prevention and Suppression of Explosions Part III Mine Fire Prevention and Control Part IV Mine Water Prevention and Control Part VII Hoisting and Transport Part VIII Safety in Blasting Operation Part IX Safety Techniques for Electric Equipment.