So the impact of fuel assemblies burn-up on core fissionneutron source parameters shall be considered in the neutron transportation calculation.
因此，在中子输运计算中，必须考虑组件燃耗对堆芯的裂变中子源参数的影响。
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
For the neutron transportation calculation, accurate fissionneutron source is the prerequisite and fundament ensuring that the calculation results are reliable.