单词 | pan-amalgamation process |
释义 | pan-amalgamation process [¦pan·ǝ´mal·gǝ`mā·shǝn ´prä·sǝs] MINING ENGINEERING A process for extracting gold or silver from their ores; the ore is crushed and mixed with salt, copper sulfate, and mercury, and the gold or silver amalgamize with the mercury. |
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