Flaw classification is realized successfully through the ultrasonic spectrum analysis. The research proves that ultrasonic spectrum technology will promote the reliability of testing results.
利用超声频谱分析法成功地实现了缺陷的分类，试验结果表明，超声频谱分析技术可提高检测结果的可靠性。
So developing the research on the reliability test technology of thermal overload relay has great signifi.
因此开展对热过载继电器可靠性试验技术的研究具有重要意义。
Research on the sensor failure diagnosis technology is important to improve the reliability of system.
传感器故障诊断技术的研究对提高系统可靠性具有重要意义。
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