Sulfide ores with BaSO4 as the main gangue , two kinds of slags , speiss and As-Cu alloy have been identified.
在还原熔中添加了矿物，冶的最终品是合金，还原熔的冰（）等副品中的通过返料操作在冰熔工序得以回收。
It is concluded that the new Mn-Cu alloy is feasible to be used as absorber in the high-speed rotary fusee-testing machine by the experiment.
通过实验测试得出新型锰合金适合作为高速旋转设备减振部件的结论。
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The set consists of nine coins: three in gold, five in silver, and one copper-alloy coin.
3枚、5枚银、以及1枚铜。
But more modern builders stopped using copper and copper alloys. They cost more than other building materials.
但是现代建筑已不再用铜和铜，因比其他建筑材料都要贵。
Keevil says earlier generations of builders in the United States also knew this about copper. That is why copper alloys such as brass were often used in building materials.
基维尔说美国早期的建筑也知道铜的这种用法，因此黄铜等铜常被用做建筑材料。
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划词翻译
详细解释
中添加了
矿物，冶
品是
合金，还原熔
的
）等副
集 
、5枚银
已不再用铜和
比其他建筑材料都要贵。
