Eight equivalent Conditions of the near F-compactness and relationships between near F-compactness.
建立了近似F-紧空间的概念,给出了近似F-紧性的8个等价条件以及近似F-紧性、几乎F-紧性和NS-闭性之间的关系。
The affect factors that F test used in the measure process that external standard control samples in ecosystem geochemistry and the precision control methods of F-test Value incline to 1 are investigated.
分析了生态地球化学样品测试外部标准控制样F检验值的影响因素,探讨了F检验值趋向1的精确控制方法。
The main controlling technology, statistics t-test and F-test, is explored.
探讨测量过程的主要控制技术：t检验和F检验，把t分布和F分布的分位数的计算问题统一地归结为了1/2整数倍贝塔分布的分位数计算。