16/08/19 18:49 MOEX (RUR): 55.40 change in % 2.08 LSE (USD): 3.28 change in % 0.12



The process of constructing a mine opening (holes, wellbores, less frequently pits and pit shafts), mainly of a round cross-section in the Earth's crust, to study geological framework, engage in prospecting, exploration, mining, geotechnical investigation, and other activities.

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