英语语法分析

The main contribution is that the bottom topography effect is included in numerical fluxes and the bottom topography is discretized with an interface method in the same step.

本文的主要贡献在于，河床地势的影响被容入数值通量中，并且同时对河床地势采用连接面方法离散。

So it becomes very important to, when you're designing or modelling a reactor, understand the nature of what's outside the core and whether or not fluxes will peak in that zone.

所以，它变得非常重要，当你在设计和给一个反应堆建立模型的时候，了解到在核心外边的实质，流量是否会在那个区域达到顶峰。