Based on the analysis of AC impedance and two poles voltage test data, the reason of turn - to - turn short circuit fault caused by having copper dregs in generator rotor winding was found.
基于交流阻抗和两极电压试验数据的分析，发现发电机转子绕组因存在铜渣而造成匝间短路故障的原因。
Experimental results demonstrated that the spectrum characteristics based on coherence analysis can be used to diagnose the stator winding inter-turn faults of induction motors.
实验结果证实，基于相关分析得到的谱特征可以作为感应电机定子线圈短路故障诊断的依据。
Turn off the TV and computer. - This kind of stimulation tells the brain to be alert when it's supposed to be winding down and has been proven to reduce sleep quality.
关掉电视机和电脑—这类刺激会在大脑，在理应得到放松的时候，让大脑保持警惕。此外这些刺激已被证实会降低睡眠质量。
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