copper ore meaning in Chinese

铜锭
铜矿砂
铜矿石

About half of the world's known supply of copper ore is already in use .
全世界已知的铜矿储量，大约有一半已在使用了。
Study of mining method for inclined thin vein in a copper ore mine
倾斜脉状薄矿体开采方法的研究
Analysis on quality and price of the marine descaling copper ore
船用除锈铜矿砂的质量与价格分析
Study of the prospecting ore of luojiahe copper ore in zhongtiaoshan
中条山落家河铜矿床找矿研究
Experimental study on new flotation technology of the refractory copper ore
某难选铜矿浮选新工艺试验研究

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