- sumping and shearing
- врубание и отработка проходческого цикла
English-Russian mining dictionary. 2015.
sumping and shearing
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Surface mining — is a type of mining in which soil and rock overlying the mineral deposit are removed. It is the opposite of underground mining, in which the overlying rock is left in place, and the mineral removed through shafts or tunnels. Surface mining is… … Wikipedia
