copper-coppernickel compensating conductor

例句：

1. 1.The copper pipe is corroding due to the acid rain.
   由于酸雨，铜管正在腐蚀。
2. 2.Copper is a popular material for making jewelry.
   铜是制作珠宝的流行材料。
3. 3. Copper is used in many electrical devices because of its high electrical conductivity.
   由于其高导电性，铜被广泛用于许多电气设备中。