chromium-copper

例句：

1. 1. The steel is made from chromium-copper alloy.
   这种钢是用铬铜合金制成的。
2. 2. This material has excellent corrosion resistance due to its high chromium content.
   由于其高铬含量，这种材料具有极好的耐腐蚀性。
3. 3. Chrome-vanadium alloy is often used in cutting tools because of its high hardness and wear resistance.
   铬钒合金因其高硬度和耐磨性常用于切削工具。