对于堆芯内布置不同燃耗深度的燃料元件的反应堆，应用本模型可以估算堆芯燃耗物理参数如：堆芯中子增殖系数、燃料元件燃耗增值等。

For reactors loaded with fuel assemblies of different burnup, the evaluation model can te used to calculate core physical parameters such as core neutron multiplication factor, burnup increment, etc.

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我们已经使用了一个相对简单的词语，称为，中子的增殖系数，那就是K，如果K等于1，中子数，是稳定的，裂变速率也一样。

And we've used a relatively simplistic term called neutron Multiplication Factor which is the K that if the K equals one the neutron population is steady as is the fission rate.

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