In this paper, an expert diagnostic system (EDS) for detecting electrical system faults in a water jet cutting Mach is introduced.

介绍了一个用于超高压水射流切割机电气故障的专家诊断系统。

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Results show that under small Mach number the main source of discrete noise is the fluctuating force, which gives a guide for cutting discrete noise down.

研究表明，低马赫数情况下叶轮离散噪声主要是由脉动力造成，为降低低马赫数下的叶轮离散噪声提供了参考。

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