contact arc discharge

例句：

1. 1.This device is used to detect the presence of contact arc discharge in electrical equipment.
   这种设备用于检测电气设备中的接触电弧放电。
2. 2.The researcher found that the contact arc discharge was responsible for the failure of the circuit.
   研究人员发现，接触电弧放电是导致电路故障的原因。
3. 3. The engineer carefully monitored the contact arc discharge during the testing process.
   工程师在测试过程中仔细监测了接触电弧放电。