contactmetal

例句：

1. 1. The contact metal is essential for the device's operation.
   接触金属对于设备的操作至关重要。
2. 2. The engineer used a special tool to remove the contact metal from the circuit board.
   工程师使用特殊工具从电路板上移除接触金属。
3. 3.The contact metal must be carefully handled to prevent damage during transportation.
   在运输过程中，必须小心处理接触金属以防止损坏。