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。

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.

youdao

手指和脚趾更容易得冻疮，因为在寒冷的气温中，身体要尽力保持核心温暖，因而要减少那些部位的血液流量。

Your fingers and toes are more prone to frostbite, because those areas will have reduced blood flow in cold temperatures, as your body tries to keep its core warm.

youdao

理解你的核心动力分布，你能计算使用扩散理论，但是核心动力分布创造了一个流量。

To understand that you have core power distribution that you can calculate using diffusion theory but that core power distribution creates a flux.

youdao