The results show that change trend of SPV with time follows gammadistribution and SPV has a peak value.
结果表明，出砂量随时间的变化趋势遵循伽马分布规律，出砂量存在峰值。
2
In this paper, the research on the parameter estimation of Gammadistribution with three parameters and the test of the location parameters has been made.
该文考虑了混合分布为三参数伽玛分布时的参数估计以及位置参数的检验问题。
3
This paper reviewed the establishment of original Weng model and accomplished the derivation of generalized Weng model, based on Gamma (r) distribution in the probability statistics.