Due to lack of historical data, it's impossible to calculate the possibilities of event sequences of submarinereactor accident quantitatively.
对船用堆事故进行事件树分析时，历史数据的缺乏常常导致无法进行事件序列的定量计算。
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This paper describes a method for quickly checking reactor safety of submarine nuclear power plant to meet the need of operational management on the scene.