查询词典 pascal distribution

Through a probability problem,a connection is showed between binomial distribution and negative binomial distribution and therefore a composed formula is set up,which is proved by way of probability and algebra.

通过一个概率问题，给出二项分布与负二项分布的一种联系，从而建立一个组合公式，并由概率思维方式与代数方式给出证明

Biogeography The study of the distribution of plants and animals, both past and present, and its interpretation in terms of ecology, in particular the distribution of world vegetation types and the interactions between humans and their environment.

生物地理学：研究过去和现在动植物分布，以及根据生态学理论对此做出的解释。特别是研究世界植被类型的分布以及人与环境之间的相互作用。

Also apply methods of integration of sequence stratigraphy, biostratigraphy, petrostratigraphy and seismic data to found the time-contour stratigraphic framework and reveal time-space distribution of depositional system and meantime clarify oil-source bed, reservoir and overlying distribution regular patterns.

此外，运用层序地层学、生物地层学、岩石地层学与测井、地震资料相结合的方法，建立该区等时地层格架、沉积体系的时空展布，阐明了生、储、盖展布规律。

The safety margin of every slice is assumed to be normal distribution and the safety margin of two next slices is bivariate normal distribution.

将滑动面上的土体按等弧长划分为n个土条，假设每个土条的安全余量服从正态分布，相邻两个土条的安全余量则服从二元正态分布，根据土条破坏传播的概率，计算土坡渐进破坏的概率以及土坡中裂缝开展长度的期望值，并对算例的结果进行了讨论。

Initially this region will be blank, note that the temperature distribution behaves qualitatively like the pressure distribution.

最初这一地区将会是空白，请注意温度分布的所作所为定性一样，压力分布。

It puts forward the control drawings of split control signal distribution block and cascade control signal distribution block.

并对分程控制、串级分配器的控制回路图连接进行了设计。

The 1s electron cloud in hydrogen atom has the largest probability density distribution around a spherical shell with Bohr radius a 0. The author thinks the probability density distribution and electron cloud belong in fact,to statistic regularity, and imply a macro-time scale is used, therefore in hydrogen molecule the product of energy and time is far larger than Planck Constant.

氢原子中 1s电子的电子云呈球形，电子的最大几率密度分布出现在玻尔半径a0 的球壳内，认为几率密度分布及电子云属统计规律，意味着已经使用了宏观时标，这样就使氢分子体系中能量和时间的作用量远大于普郎克常数；根据电子云的交叠，用经典力学计算了基态氢分子的结构常数，获得键长、键能及力常数的表达式分别为Re=2a0 ，De=ze/4 2a0 ，k=ze/2 2a30 ，采用原子单位 a 。u 。

The result showed a thick and dense distribution of bronchus and bronchiole of asthma group; a sparse distribution in respiratory bronchiole and pulmonary alveoli; some positive fibers extrude the epithelium mucosae into the alveoli.

结果发现哮喘组肺内支气管及细支气管阳性纤维增粗、分布密集度显著增加；在呼吸性细支气管及肺泡亦偶有分布；有部分阳性纤维经粘膜上皮内伸出并暴露于管腔内。

The results indicate that the distribution of Cd, Pb and Zn in topsoils of the plain region is different obviously from that in deep soils of the plain region and the genetic area, which is apparently anthropogenic input according to canonical correlations and the distribution characteristics of enrichment value.

结果表明，平原区浅层土壤内Cd、Pb、Zn元素的分布明显不同于物源区及平原区深层土壤，在元素之间的典型相关关系及元素富集的分布特征上，均表现出明显的人为源特征。

The richness center of the Theaceae plant species under study is located in the mountainous area of north Guaugdong (22.5°N, and 112~115°E). These plants species exhibited significant longitudinal difference (P=0.0012), and latitudinal variation (P=0.0049). Canonical Correspondence Analysis showed the distribution of plant species could be explained by caloric factors and moisture factors, and MAMI (mean annual minimum temperature) was the key factor determining the distribution pattern of Theaceae plant species richness in the study area.

对125种植物、72个网格和6个环境因子进行典范对应分析表明：CCA排序轴第1轴主要代表温度的变化梯度，第2轴主要代表水分的变化梯度，说明水分、温度等因素共同影响山茶科植物在广东的生长和分布，其中年均最低温度是影响广东省山茶科植物丰富度水平地带性格局的最大因子。

Chinese traditional virtue is humility and wariness,the compliment and praise to the others should be declination

中国人的传统美德是谦虚谨慎，对别人的恭维和夸奖应是推辞。如

We bought this house on the never-never.

我们以分期付款的方式买下这座房子。