Climate and land use are important factors in trace element distribution.
气候和土地利用是影响地下水中微量元素分布的主要原因。
There is no implicit analysis in a frequency distribution-it is simply the statistical representation of what exists in a particular data element or domain.
在频率分布中没有隐式的分析—它只是关于一个特定数据元素或域的内容的统计表示。
For example, consider what the meaning of the element "address" is to a distribution department. This is likely to be the "ship to" address.
例如，对于配送部门，“地址”元素可能是指送货地址。
For the plates with finite dimensions, the finite element method is used to obtain the stress distribution and stress concentration around the ovaloid opening.
对于有限尺寸板内开孔的情形，文中用有限单元法来分析腰圆形孔口的应力分布和应力集中。
As lead and arsenic pollution element are skew distribution, statistics of a natural background value and a content of lead and arsenic are worked out using median method of skew distribution.
由手铅、砷污染元素呈偏态分布，故采用偏态分布中的中位数法作了铅、砷自然背景值及含量的统计。
Aiming at the randomicity of concrete crack, the author adopt the randomicity finite element model and Monte-Carlomethod to simulate the randomicity of material character and crack distribution.
针对材料性能的随机性和裂缝分布的随机性，引入了随机性模型，采用蒙特卡罗法来模拟其随机性。
What is the main element that decides the distribution of wealth?
财富的分配主要由什么决定呢？
The microstructure? Element distribution and phase after hot-corrosion were analysed by means of X-ray diffraction (XRD) and scanning electron microscope (SEM).
利用X射线衍射(XRD)和扫描电镜(sem)等手段，对高温熔盐热腐蚀后的组织形貌、元素分布及物相进行了分析。
The arrangement of tabs provides more drip points per element offering better liquid distribution and higher efficiency.
安排的标签提供了更多的滴灌点每个元素提供更好的液体分布和更高的效率。
Under the condition of three kinds of nonlinearity the stress and strain distribution of the road wheel is calculated with finite element analysis software ANSYS.
建立了负重轮的三种三维有限元力学模型，在考虑三重非线性的情况下，用ANSYS有限元分析软件计算了负重轮的应力应变分布。
The finite element analysis showed that the normal stress distribution of the grillage wall was about the same as that of the solid wall.
有限元计算表明，网格墙在轴力和水平力作用下的正应力分布与实体墙总体上一致；
The results show that the distribution and valance of copper element is different among these samples.
结果表明，掺铜方法不同，铜元素在催化剂中的分布及存在状态不同。
In this paper the novel method of using holographic optical element (HOE) to realize optical clock distribution was presented.
提出了采用偏振全息术制做全息光学元件以实现光学时钟分布的方法。
The magnetic distribution of the single-coil and dual-coil magnetic rheological dampers with the same effective piston length was analyzed by using the finite element ANSYS software.
采用有限元ansys软件，分析了相同活塞有效长度下的单线圈与双线圈结构磁流变阻尼器的磁场分布情况。
Analysis of element distribution shows that the enrichment of si and Cu exists on the grain boundary.
对雾化粉末中各元素分布的分析表明，硅、铜等元素在晶界上有富积现象。
The effect of alternating magnetic field frequency on the meniscus, microstructure and element distribution of the static formed ingots of minitype square billet of 7050 aluminium alloy.
研究了在交变磁场作用下磁场频率变化对7050铝合金小型方坯静态成型铸坯熔体的弯液面、显微组织以及元素分布的影响。
The thesis mainly discusses space distribution character of 20 kinds of element of the air dust near the ground in Chengdu economic area.
本文主要对成都经济区近地表大气尘中主要的20种元素的空间分布特征进行研究。
By means of boundary element method, the pressure distribution problems in petroleum industry are transformed into corresponding boundary integral equation.
借助边界元法将油气藏工程中的多油井生产的压力分布问题转化为相应的边界积分方程。
According to the perturbation theory, a distribution law of matrix element in secular equation is discovered in degenerate state and wave function property of the hydrogen atom.
根据简并态微扰理论和氢原子波函数的性质，得到久期方程中微扰矩阵元的分布规律。
The joint structure and element distribution at brazing seam are also studied by SEM/EDAX and thermodynamics measures.
通过SEM/EDAX以及热力学方法分析了钎焊接头组织及钎缝的成分分布。
The distribution and fractionation of Rare Earth element are the base for their usage as trace elements.
稀土元素在环境中的分布分异机制，是研究其作为地球化学示踪剂的重要基础和必要前提。
Shape function used for describing displacement distribution in element determines the speciality of the element in the finite element methods.
在有限单元法中，形函数用于描述单元内位移分布，决定着单元的特性。
The accumulation and distribution rule of productivity and nutrient element were studied by determining the biomass and chemical element in different organs above ground of sample trees.
通过对样地水曲柳天然林的各器官生物量的测定和化学元素分析，研究了生物生产力及营养元素的积累与分布规律。
The regulation of distribution, gathering and migration of each element in the section are corresponded with the fluctuations of its gathering and leach coefficient.
剖面中各元素的这种分布和集散规律也与元素的富集系数和淋失系数波动一致。
Air temperature distribution is analyzed with a finite element method. Linear distribution of refractive index is calculated for certain measurement positions.
该文利用有限元方法分析热轧车轮周围空气温度场，计算得到相应测位空气折射率的线形分布规律。
The paper briefly introduces several heat source models in numerical simulation of welding processes, including Gaussian distribution, double-ellipsoid distribution and birth-death element.
文中简要介绍了焊接过程数值模拟热源的各种加载模式：高斯分布函数、双椭球分布函数、生死单元方法。
According to the measured results, a reasonable boundary condition can be set up and then the field distribution can be calculated by using the finite element method.
按测量结果，确定了一个合理的边界条件，用有限元法模拟计算了沿轴场分布。
The spatial distribution of element concentration values is expressed in the form of map.
元素浓度值的空间分布应以图的形式表示。
The spatial distribution of element concentration values is expressed in the form of map.
元素浓度值的空间分布应以图的形式表示。
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