oxygen-free copper

例句：

1. 1.The oxygen-free copper is used in the manufacturing of electronic devices.
   无氧铜用于制造电子设备。
2. 2.The oxygen-free copper has excellent electrical conductivity.
   无氧铜具有良好的电导性。
3. 3.The oxygen-free copper is resistant to corrosion and wear.
   无氧铜耐腐蚀、耐磨。