该设备还可将出现故障时的工作电压、三相电流值保存下来，作为日后故障诊断及故障排除的依据。

For future fault diagnosis and troubleshooting, the working voltage and the three-phase current can be preserved when the oil-extractor has fault.

youdao

该设备还可将出现故障时的工作电压、三相电流值保存下来，作为日后故障诊断及故障排除的依据。

For future fault diagnosis and troubleshooting, the working voltage and the three-phase current can be preserved when the oil-extractor has fault.

youdao