copper cored carbon

例句：

1. 1.This copper cored carbon is very strong and durable.
   这种铜芯碳非常坚固耐用。
2. 2. The copper cored carbon is used in the production of electrical equipment.
   铜芯碳用于生产电气设备。
3. 3. Copper cored carbon is a popular material for making electronic devices.
   铜芯碳是制作电子设备的流行材料。