檢索結果 - "Silver mines and mining."

Silver --exploration, mining and treatment : papers presented at the international conference Silver-exploration, mining and treatment',

主題: “...Silver mines and mining....”

A mathematical model to guide the discovery of ore bodies in a Coeur d'Alene lead-silver mine / 由 Koch, George S. (George Schneider, Jr.), 1926-

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Recovery of silver from Wau manganese silver ores a current assessment.

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A mine to make a mine : financing the Colorado mining industry, 1859-1902 / 由 King, Joseph E.

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Prospecting our past : gold, silver, and Tungsten mills of Boulder County / 由 Cobb, Harrison S.

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Gold, silver, uranium, and coal : geology, mining, extraction and the environment /

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