Then, we studied a few of properties of negative binomial distribution and the uniformly unbiased estimator of the parameter, and it's biological significances were explained in Epidemiology.
给出了负二项分布的分解定理，进一步研究了负二项分布的有关性质及参数的无偏一致估计，以及在流行病学该分布的生物学意义。
The understanding for the significances of the biological function of the proteoglycan have been increased rapidly in the past few years.
近年来，对蛋白聚糖生物活性的重要性的认识迅速增长。
The understanding for the significances of the biological function of the proteoglycan have been increased rapidly in the past few years.
近年来，对蛋白聚糖生物活性的重要性的认识迅速增长。
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