在此基础上，根据可靠性分析方法，建立了失效更换情况下可更换非金属件的最佳备件数模型，所得模型可以应用于非金属件备件数的理论预估。
Thereby, Quantities model of spare parts is studied with reliability method according to invalidation replacing, which can be used as references for deciding the quantities of spare parts.
此方法对零件的可靠性设计及寿命预估很有参考价值。
The method is available for reference in reliability design and service life estimation of machine parts.
可靠寿命预估对提高汽车设计水平和汽车可靠性有很重要的意义。
Prediction of reliable life of automobile part is important to increase its reliability.
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