cumulative frequency distribution : 累积频率[数]分布 cumulative probability distribution : 累积概率分布 CDF (cumulative distribution function) : 累积分布函数 ..
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总结了雷电流幅值的累积概率分布，研究了雷暴日与地闪密度之间的关系。
The spacitial distributions of lightning acativities were shown in Google Earth (GE). Meanwhile, the relationship between lightning day and ground lightning density had been investigated.
利用川渝地区含硫气井H2S释放速率数据，根据其累积概率分布函数建立概率分布模型。
The probabilistic distribution model for the release rates of H2S in the sour gas wells of Sichuan and Chongqing areas was developed using the complementary cumulative distribution function.
给出了各种复合衰落的概率密度函数、累积分布函数、平均电平交叉率、平均衰落时间的统一表达式。
The probability density function, cumulative distribution function, average level crossing rate and average fade duration of each composite fading channel are analyzed, and some uniform expression.
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