When a nuclear bomb goes off, it throws a huge number of particles into the air, a lot of which are radioactive, like cerium-141.

当核弹爆炸时，它会向空气中抛出大量粒子，其中许多是放射性的，比如铈 141。

And the charge of one mole of electrons divided by the charge of one electron gives you the number of particles in a mole: 6.022 times 10 to the 23rd.

一摩尔电子的电荷除以一个电子的电荷得到一摩尔的粒子数：6.022 乘以 10 到 23。

These two rows show the number of particles in the simulation in the worst case scenario, and as you see, some of these incorporate millions of particles for the fluid and many hundreds of thousands for the sediment.

这两行显示了最坏情况下模拟中的粒子数量，正如您所见，其中一些包含数百万个用于流体的颗粒和数十万个用于沉积物的颗粒。