high copper amalgam

例句：

1. 1. The high copper amalgam is used in the production of electricalcontacts.
   高铜合金用于生产电气接触点。
2. 2. The high copper amalgam wasfound to have excellent corrosion resistance.
   研究发现，高铜合金具有极好的耐腐蚀性。
3. 3. The high copper amalgam wasused as an effective anti-rust agent.
   高铜合金被用作有效的防腐蚀剂。