查询词典 spatial model

This model used the finite—difference approximation to the advection— dispersion equation. The spatial derivatives in the flow equation are approximated by central difference written about grid—block boundaries and time derivatives are approximated by a fully implicit backward scheme.

水流方程的空间导数采用中心差分格式离散，时间导数采用隐式差分格式离散，建立了土壤水分和污染物在各种饱和度的条件下迁移转化方程耦合求解的二维数值计算模型。

In order to acquire the spatial stress distribution of the pier-beam fixed joint , a pier-beam fixed joint finite element space model is established and analyzed in different loading cases.

为掌握石板坡大桥墩梁固结点的三维应力状态，建立了墩梁固结点结构分析的空间有限元模型，根据施工过程中及成桥后的工况，分别进行了空间有限元计算，得到了墩梁固结点在三种工况下的应力分布情况，检验了设计的安全性与合理性，提出了改善墩梁固结点应力的措施和方法，为设计和施工提供了科学的依据。

In this model, the Fresnel integral was performed in the spatial frequency domain, and the X-ray diffraction field was calculated by means of the fast Fourier transform.

该模型将Fresnel积分运算转换到空间频域，利用快速傅里叶变换计算衍射光场。

In part one (chapter 2-3), two new methods and systems of optical parallel logic operation are studied. Triple-in Double-out shadow-casting logic operation system is proposed and realized for the first time. Based on this, optical full adder and 3-bit decoder array logic have been obtained. It is the first time to use coding pattern and different reading-writing model to realize BSO-PROM optical parallel logic operation where the time-order operation is avoided, so that the computing speed of optical parallel logic gate which uses this kind of spatial light modulator is increased, and it is successfully used in optical symbolic substitution .

在第一部分，对两种新的并行光学布尔逻辑运算方法及系统进行了研究：首次提出并实现了三输入、双输出铸影光学逻辑运算系统及其由此得到的光学全加器，并提出一种以此为基础的3-比特译码器阵列逻辑，首次利用图形编码和不同的读写模式实现了无时序操作的BSO-PROM光并行逻辑运算，大大提高了这种空间光调制器用作光并行逻辑门的运算速度，使之成功地用于光学符号代换之中。

The application of geo spatial information net model used in grid based GIS is also discussed.

结合应用案例，分析了网状服务模式在网格GIS中的应用。

This paper presents a 3D complex geological entity modeling method based on line-frame model, designed to accurately express the spatial geometrical shape of every element of a complex geological entity and their mutual relationship.

提出了一种基于线框架模型的复杂地质体三维建模方法，在准确表达复杂地质体各要素空间几何形态与相互关系的基础上，实现地层交错情况下断层面、地层面模型及复杂地质体模型的准确快速构建。

Based on geordie coefficient, we measure the diversification of the urban system spatial polarization degree of Northeast China in different period by referring the model of polarized index which is used widely abroad or designing a new on the base of this.

以基尼系数为基础，引用国际上应用较多的或在此基础上设计新的"极化指数模型"，用以测定不同时段东北地区城镇系统的空间极化程度的变化。

This paper found that this main paradigms ignored the restructuring of global space and new spatial division of industry, from many reviews of the empirical researches, and failed to explain how the china urbanization do emerge and how its mechanism do trigger? With review of the globalist opinions, then, this paper tried to support the new research of urban region, including region-state model and metropolitanhind land system.

本文透过文献的评析发现，这类型的研究缺乏一个以全球空间的表述方式和新的产业分工来支持和说明中国都市化形成的机制和作用力，其次则透过部分全球主义学者的论述来支持新的研究范型，这包括区域国家和都会区－腹地系统二个空间模式。

As one of frame data of National Spatial Data Infrastructure , Digital Elevation Model excels contour line. it can express continuous gurgitation of ground, and it can also carry out relevant mathematical analyses and imitation, so it is applied broadly in various fields at present.

数字高程模型DEM是国家空间数据基础设施的框架数据之一，其弥补了等高线的不足，既能表示地面的连续起伏变化，又适合作相应的数学分析和模拟，现在已在各个领域得到了广泛的应用。

Hohn M E%Liebhold A M%Gribko L S Geostatistical Model for Forecasting Spatial Dynamics of Defoliation Caused by the Gypsy Moth(Lepidoptera:Lymantriidae) Environmental Entomology , 1993,5

李友常%夏乃斌%屠泉洪%骆有庆%温俊宝杨树光肩星天牛种群空间格局的地统计学研究生态学报， 1997，(4)石根生%李典谟马尾松毛虫空间格局的地学统计学分析应用生态学报， 1997，6

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。