AC copper coated electrode

例句：

1. 1.The new AC copper coated electrodes are more efficient than the old ones.
   新的铜包铝电极比旧的更高效。
2. 2.The engineer used a special tool to coat the copper on the electrode.
   工程师使用一种特殊的工具来在电极上涂铜。
3. 3.The copper coated electrode is used in power transformers as an insulator.
   铜包铝电极用于电力变压器中作为绝缘体。