But in wavelet parameters optimization problem, wavelet analysis in the application of the theory to the actual fault diagnosis system, has a large number of practical work to do.

但在小波参数的最优化问题上，在将小波分析的理论应用到实际的故障诊断系统中，还有大量的实际工作要做。

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Thirdly, with theory of fault tree analysis, faults of marine refrigerated container are studied, and methods of finding out faults' reasons are supplied.

第三，利用故障树分析理论对船舶冷藏集装箱故障进行分析研究，提供查找故障原因的方法。

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This dissertation adopts the combined method including theory analysis and experiment validation to study the fault detection of chilly water set of single screw.

本论文采用理论分析与实验验证相结合的方法对单螺杆冷水机组的故障诊断技术进行了研究。

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