We reviewed the notion that these were prescriptive and deterministic. Any computer code that you wanna use for the safety analysis you have to have NRC approval.

我们回顾了这些规定的和确定性的，概念，任何的计算机准则，你们要在必须得到NRC的同意的，安全分析中使用的。

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The RELAP5 code is a great thermal-hydraulic transient analysis code at present, and it is as the tool of studying passive safety in this thesis.

RELAP5程序是目前大型的热工水力瞬态分析程序，本文把它作为非能动安全研究的工具。

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For comparing with the FSAR (final safety analysis report), the initial conditions taking in computing simulation, calculation models and analysis code used in calculation were same as in FSAR.

为使分析计算与FSAR有一个可比性，模拟计算采用的初始条件、计算模型及分析程序都与FSAR相同。

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