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And it has been shown that the faults mostly concern with the vehicle bearing . therefore , in the research of detecting and diagnosing the rolling bearing of the high - speed vehicle , there is of active current and theoretical significance 列车转向架的轴承又是一个易出问题的地方，所以针对高速列车转向架滚动轴承进行故障诊断方面有价值的研究，有着积极的理论和实际意义。
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