Now, this slide is an interesting slide because it shows you what happens when a neutron is born as a result of fission.
现在，这个图很有趣，因为，它向你们展示了发生的事情，当一个中子是以裂变的结果产生的。
2
Or it can have a collision that can create a fissionneutron which then is tracked as well as the start of a fission which may be in a quite different place.
或者它有能够创造出一个裂变中子的碰撞,那能够追踪到一个裂变的开始,那可能是在一个很不同的位置。
3
If it's greater than one, namely we produce more neutrons in one generation compared to the next the neutron population grows as does the fission rate.