分布的

This paper was focus on Dianshan River which is one of the most important water sources of Shanghai. We study the distribution, speciation and transformation rule of Cu, Cd, Cr, Hg, Pb and As in sedimentary record. In addition, the history of development of industries and agriculture were also taken into account to study the heavy metal pollution history in the study area.

本文以上海的重要水源地——淀山湖为研究对象，通过对研究区沉积物中重金属元素Cu、Cd、Cr、Hg、Pb、As的时空分布规律以及它们在沉积物中随时间或沉积深度的形态分布及迁移转化规律的研究，综合考虑区域工农业发展现状和历史对沉积物中重金属元素含量及分布的影响，对区域重金属污染历史及效应进行分析论证。

The relationship between the negative binomial distribution and the time-dependent Poisson distribution was further discussed.

并进一步阐明了负二项分布与时依Poisson分布的关系。

A theoretical distribution that is a good approximation to the binomial distribution when the probability is small and the number of trials is large.

当概率小而试验次数大时逼近二项式分布的一个理论分布。

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

The magnetic field in the cell was calculated on the basis of Biot-Savart's law and improved—equal—effective—magnetic dipole method, and the computer program was much improved on previous work.

根据欧姆定律和基尔霍夫定律，用有限差分法导出了求解铝电解槽内三维电流分布的数学模型，编制了计算程序，在国内首次较准确地计算了铝电解槽内三维电流分布。

By the circular current symmetry characteristic,on the basis of Biot-Savart law,the expression of the whole-space magnetic induction intensity distribution was deduced in the spherical coordinates system.

在球坐标系中，由磁感应强度的计算公式毕奥-萨伐尔定律出发，利用圆电流磁场的对称性推导出全空间磁感应强度B分布公式，讨论了圆电流平面上和中心轴线上的磁场，应用C数值计算方法对全空间磁感应强度B公式求解，绘制出磁感应强度分布的主要区域及磁场的空间分布图，并对全空间磁感应强度B分布特点进行了讨论。

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。

The remote sensing equation for determining the profiles of the atmospheric temperature structure constant and wind have been derived by using the statistical characteristics of the fluctuated atmospheric microwave radiation.

推导出利用大气氧气微波辐射起伏统计特征，探测大气温度结构常数分布与风分布的遥感方程。

Fractal dimension also reflects the impact of deposit energy distribution and diagenesis on the permeability distribution.

分维还能反映沉积能量分布和成岩作用对渗透率分布的影响。

Based on traffic properties analysis in highway network,this paper proposes an inferrence model of OD distribution of highway traffic according to entropy maximisation principle.Being able to infer thoroughly from the effective information and parts of data to update the OD matrix the model can simplify the method of acquisition of OD distribution without over- emphasizing the OD survey as before.

本文在分析公路网交通特性的基础上，根据极大熵原理建立了公路交通量 OD 分布的推断模型，该模型可充分利用各种有效信息和局部资料对 OD 分布情况进行推断及追踪校正，因而可避免严重依赖 OD 调查数据的状况，使获取 OD 分布资料的方法得以简化。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。