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El Salvador produces 100,000 tons of refined copper annually.
萨尔瓦多一年生产10万吨精炼铜。
《柯林斯英汉双解大词典》
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China's Daye to double refined copper output by 2015.
预计2015年，中国大冶公司精炼铜产量翻番。
youdao
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Refined copper and copper alloys, unwrought.
未锻轧的精炼铜及铜合金。
youdao
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Refined copper and copper alloys, unwrought.
未锻轧的精炼铜及铜合金。
youdao