...，对PDMS的可靠性评价，首先要考察各个子系统的可靠性，对于单一功能的子系统，其可靠性评价模型（Reliability Evaluation model, REM）可表示为：M rem = (V, Vs, Γv), 其中V={ V1，V2，….
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介绍了一类比较简单实用的软件可靠性评价模型，并给出了解析方法。
A simple and practical model of software reliability is introduced, and analysis method is given.
为了较好的解决这个问题，本文首先通过故障树分析（简称FTA）的学习，探讨用故障树分析法作为眼科医疗器械产品质量可靠性评价模型的基础。
To settle this question better, this thesis discusses to use FTA as the base of product quality reliability evaluation model of ophthalmic medical instrument by learning FTA;
它是最广泛采用的处理不确定性因素(如药品费用、治疗效果)的方法，通过改变参数值来检验经济学模型或评价结果的可靠性。
It is the most widely used method to treat indefinite factors such as drug fees, treatment effects. It tests economics models or evaluates reliability of results by changing parameter values.
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