Component detection must be carried out when abnormal detection occurs and the safety confirmation of the used replacement medium is conducted at the same time.

出现检测异常时必须进行成分检测，同时对采用的置换介质进行安全确认。

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The reasons include inappropriate maintenance, component failures, filter blockage, bad crankshaft bearing shells, inappropriate fit clearances, abnormal diesel engine vibration and etc.

烧损原因包括保养不当、部件故障、滤清器堵塞、轴瓦质量不高、配合间隙不合适以及柴油机异常振动等。

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The distribution of sample plots and the detection of abnormal sample plots in monitoring area are studied by means of principal component analysis according to these factors.

根据这些因子进行主分量分析，研究监测区域样地的分布及异常样地的探测。

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Parkinson's disease is characterized by clumps of abnormal brain proteins called Lewy bodies of which a-synuclein (a-syn) protein is the principal component.

WSJ: Exercise Benefits vs. Joint Concerns