According to the failure site data of the well pumping unit in active service, its life statistical model is determined and the service reliability is evaluated quantitatively.

由在役抽油机故障的现场数据来判定其寿命统计模型，实现对抽油机使用可靠性的定量评定。

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The scope of reliability theory made use of includes statistical analysis of life data and interference model of probability distribution as well as reliability models of systems.

文中使用的可靠性理论包括寿命数据分析理论、概率分布干涉模型和系统可靠性模型。

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A reliability growth model for Shanghai licensed 300mw steam turbines is presented, together with a description of a method for statistical analysis of the model.

提出了上海引进型30 0 MW汽轮机可靠性的增长模型，并介绍了该增长模型的统计分析方法。

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