The four-factor formula obtained in the static reactor physics is given for critical calculation.
给出了临界计算所要求的，得自静态反应堆物理的四因子公式。
2
The four-factor classifying method would play a guiding role in the re-search on database machines.
四要素分类法对数据库机研究将起到指导作用。
3
In the fourth part, we construct a four-factor model of organization career management by factor exploratory analysis, and validatory factor analysis The four factors are: Career direct;