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Definitions of UNDERGROUND MINING HARD ROCK, synonyms, antonyms, derivatives of UNDERGROUND MINING HARD ROCK, analogical dictionary of UNDERGROUND MINING HARD.
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Underground hard rock mining refers to various underground mining techniques used to excavate hard minerals, mainly those containing metals such as ore .
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Hardrock mining involves uncovering and extracting non-fuel metal and mineral.Drilling is used to obtain core samples of the ore body at various depths.