Results indicated that aphids fed on fresh bamboos by aggregately distributing, and their predators in bamboo forests were separately collected in different parts, main of which were in accord with negative binomial distribution and Polya-Eggenberger distribution, it was proved that some natural enemies in some sample sites were spraying extensively from single plot to around places, the population density of bamboo aphids was proved to be stable in a regular time.

在竹林中主要符合負二項式分布和 P-E 核心分布丁香六月深婷婷综合五月，為不均勻的聚集分布中文字幕无码毛片一级，存在由點片向四周擴散的現(xiàn)象，頻次分析和聚集度指標的分析結果基本一致rihanhuangsewangzhan，其中瓢蟲的聚集程度不及另外2種天敵的明顯婷婷丁香五月综合中文字幕。

The asymmetrical distribution of temperature and fuel component affects the distribution of current density.

溫度和燃料組分的非均勻分布直接影響了電流密度的分布。

Then we define the stable distribution with four equivalent ways and analyze its properties carefully. To study the stable distribution, we must know how to simulate its random variables. We can learn it intuitively by watching its plot of density function.By adding an auxiliary variable in the Chapter 4, we estimate the four parameters using Gibbs sampler.

接著給出了穩(wěn)定分布的四種等價定義方法18岁进看的黄色网站，詳細的分析了穩(wěn)定分布的性質火热福利视频导航，提出如何利用簡單隨機數產生穩(wěn)定分布的隨機變量以便我們進行分析研究，借助穩(wěn)定分布近似密度函數的圖形我們對它的特征會有更加直觀的認識精品欧美日韩一级视频在线观看。

Referring to Bessel function,a calculation equation of temperature distribution in the surface and heat-flow density of wax deposit layer in the laminar flow is deduced,as well as temperature distribution inside.

通過對試驗環(huán)道上測試段相關數據的測試黄色带国产7J8在线观看，對比分析測試段管壁有沉積物和無沉積物時測試段管壁內溫度分布的不同表達式，根據能量方程建立了無量綱溫度分布方程，利用貝賽爾函數推導出原油在層流狀態(tài)下沉積層表面溫度分布国产精品日韩、沉積層熱流密度jizz在线视频、油流溫度分布等相關溫度場的計算公式，為研究蠟沉積規(guī)律黄色视频观看免费的黄色网站，定性分析管路結蠟層厚度和制定合理的清管方案奠定了理論基礎精品一级黄色。

In order to improve the validity of identifi cation of digital image origin and predetermine accurately threshold of identification,a new probability density function of generalized chi square distribution is constructed within0,1 for asymmetrical distribution of noise correlation.

為了提高鑒別數字圖像來源的正確性，正確設置判別閾值欧美激情亚洲熟妇，針對噪聲相關性的非對稱分布黄色视频在线观看看网站，在0，1區(qū)間構造了一個廣義chi平方分布的新函數台湾亚洲综合色区，并提出了一種利用廣義chi平方分布來描述噪聲相關性的非對稱分布和利用廣義高斯分布來描述噪聲相關性的對稱分布的新方法2020国产高清成年视频。

Secondly, through on-site and laboratory testing, studies the impact of root distribution density and distribution methods to root complex shear strength.

根系的抗拉特性符合一定的規(guī)律，對進一步研究根系的拉拔特性奠定基礎欧美视频天。

Using assumed explained variable condition, applying the maximum entropy principle and with the condition probability distribution complying with that of sample data and prior distribution, the author finally estimates an optimal conditional probability density of the LGD.

利用假定的解釋變量條件精品视频网站，應用最大熵原理，并要求所估計的條件概率分布一致于樣本數據和先驗分布黄色网站上视频，最終對違約損失率估計出最佳的條件概率密度一级精品在线。

In this article the usual method of determining the distribution density of function of one-dimensional continuous random variable——distribution function method.

本文給出了求一維連續(xù)型隨機變量函數分布密度的一般方法：分布函數法，并用分布函數法對現(xiàn)有文獻中的計算公式進行了理論探討国产亚洲丝袜制服，對現(xiàn)有的定理進行修正拓展igao视频社区，擴大了應用范圍。

Contour density of the temperature distribution in cross-section was different according to distance of the heater. The closer the distance from the electrode, the more intensive the density of isogram was. All isograms exhibited irregular oval shape.

結果顯示距離熱源不同距離的橫截面溫度分布等值線密度不同爱爱人人，越接近電極日韩一级精品，等值線越密集，且呈不規(guī)則橢圓形人人人人操人人人上。

China is the world's population density is one of the countries with high per square kilometer, the average population density of 134 people; but rather a balanced distribution.

中國也是世界上人口密度較高的國家之一99精品国产高清久久久久久，每平方公里的平均人口密度為134人；但分布頗不均衡你懂的视频在线永久免费观看。