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20:05 Jan 22, 2021 |
Russian to English translations [PRO] Tech/Engineering - Mining & Minerals / Gems | |||||||
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| Selected response from: Frank Szmulowicz, Ph. D. United States Local time: 20:48 | ||||||
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2 | transportation raise bore shaft |
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transportation raise bore shaft Explanation: Raise boring machines are used for excavation of shafts and other vertical structures in mining and civil engineering fields for material and human transportation and ventilation purposes. https://onepetro.org/ISRMEUROCK/proceedings-abstract/EUROCK1... A raise borer is a machine used in underground mining, to excavate a circular hole between two levels of a mine without the use of explosives. https://en.wikipedia.org/wiki/Raise_borer ccc Raise bore shaft development requires access to the bottom of the shaft in order to connect the reamer head to the drill rod as well as to remove the cuttings. https://www.shaftdrillers.com/uploads/files/Blind_Shaft_Deve... |
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