... 几何密度 Geometric densities 负二项密度 Negative binomial densities 连续随机变量 Continuous random variable ...
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The results are as follows: The distribution pattern of larvae is aggregative ( negative binomial distribution) . The aggregation dose not change with the densities of population of leaf miner.
结果表明：烟草潜叶蛾幼虫在田间呈聚集分布，聚集强度不因种群密度的改变而改变。
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