因此，优秀的故障诊断人员在尝试寻找问题的原因以及了解系统行为的同时始终会兼顾全局情况。

Therefore, a good troubleshooter should never forget to "keep an eye on the big picture" when attempting to puzzle-out the cause of a problem and to understand the behavior of the system.

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试验证明，小波- HMM可以在变转速变载荷工况下以及未知转速情况下对滚动轴承的各种故障有效地进行诊断。

The experiment shows that the HMM wavelet can make the effective diagnosis for various faults of rolling bearings operating under the condition of variable speed and load or unknown speed.

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研究表明，在不解体的情况下，利用小型柴油机缸盖声信号对其进行故障诊断是可行的。

The study indicates that the noise signal can be used to diagnose the fault of the mini-diesel without disassemble the diesel.

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