crude copper

常见例句

In this study, material inputs of iron ore, crude copper and crude aluminum of China were calculated and analyzed.
本文以中国铁矿石、粗铜和原铝生产为研究对象，对其物质投入进行了计算分析。
While the overall material input of iron ore and crude copper displayed a decreasing trend, that of crude aluminum presented ruleless over the study period.
全国铁矿石和粗铜的物质投入在整体上有较明显的下降趋势，但原铝的这一指标则无规律可循。
This method has been employed with good results for determining copper in tin-based bearing alloy, Babbitt alloy and crude copper containing tin and antimony.
本法已应用于锡基轴承合金、巴氏合金及含有锡或锑的粗铜中铜的测定，效果良好。

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