| 单词 | extract gold |
| 释义 | extract gold Mine owners claim production costs have risen because they have been forced to dig much deeper to extract gold. Times, Sunday Times Concerns were raised about the mine's potential impact on the region's water supplies, and about the use of cyanide to extract gold from ore. Globe and Mail The delusion was abetted by unscrupulous assayers, and by swindlers selling secret metallurgical processes to extract gold from the shale. Retrieved from Wikipedia CC BY-SA 3.0 The mining law of 1866 had given discoverers rights to stake mining claims to extract gold, silver, cinnabar (the principal ore of mercury) and copper. Retrieved from Wikipedia CC BY-SA 3.0 Most gold miners use liquid mercury to extract gold particles from the alluvium. Retrieved from Wikipedia CC BY-SA 3.0 |
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