For future fault diagnosis and troubleshooting, the working voltage and the three-phase current can be preserved when the oil-extractor has fault.
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。
2
Main technical factors of super-critical fluid extraction of Maoming and Fushun oil shale were studied in a semi-continuous experimental apparatus with an extractor 25 mm in diameter.
在内径25毫米抽提器的半连续试验装置中对茂名和抚顺油页岩超临界流体抽提的工艺条件进行研究。
3
Oil leaching rate was very important parameter for the design of an extractor at a definite oil leaching process.