The model produced two types of so-called criminal "hot spots," which are mathematically referred to as supercritical (which is an unstable system) and subcritical (which is a stable system.)
In a hole in the center of this system is placed a subcritical sphere of fissionable material.
在这个系统的中心圆洞中放置一枚次临界的球形可裂变物质。
3
Since 45. 8% of electricity in Shandong Grid was generated by subcritical 300MW units, the much better chemical supervision on water and steam system leads to the important direction in future works.