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Mineral mining
The extraction of valuable minerals or other geological materials from the earth for economic interests.
Industry: Mining
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Mineral mining
Longmaid Henderson 過程
Mining; General mining
從燒焦的硫化物,焙燒與鹽岩和使用頒發的氣體後縮合、, 氯化渣浸出回收銅的方法。 然後溶銅從到廢鐵的浸出液中沉澱出來。