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探讨了如何利用铁谱技术及数理统计方法，对机油中磨粒的含量进行分析。依据磨粒上升率，即磨损率ｋ，判断柴油机的运行状态。
This paper discusses how to analyze the content of abrasive grains in engine oil by using ferrography and mathematical statistics. According to wear rate of grain, that wear rate k, to determine the operating status of the diesel engine.