电力公司反应堆建设中的一个决策问题，是如何依据过去经验和试验结果来选取最优的建设方案。评价网络理论（valuation networks）是贝叶斯决策问题表示和求解的新方法。以某电力公司为例，应用评价网络理论，以反应堆建设的决策问题进行分析，给出了决策问题的具体表示和求解的详细过程。

How to use experience and test result to make the best choice is a decision problem for a electric power company when deciding to build a reactor,  and valuation networks is a new method for representing and solving Bayesian decision problems. This article used Valuation Networks to analyze the reactor problem of a given company,  which valuation network representing and solving process is demonstrated in detail.