Spatial data interpolation is an indispensable process in DEM.
空间数据内插是DEM建模中不可缺少的环节。
In the end, the criteria of computing control, slide and failure in DEM are introduced.
最后，介绍了离散元法的计算控制及滑动与失稳的判据。
Quality control is the key link in DEM production, and the gross error is one of important factors affecting DEM quality.
数字高程模型(DEM)生产中最关键的环节是质量控制，而粗差是影响DEM质量的重要因素之一。
Visualization is a powerful tool of expressing and analyzing complicate data. Its being used in DEM and 3d geo-model, 3d terrain and geologic model will be implemented.
可视化技术是当今表达和分析复杂数据的有力工具，将可视化技术引入到DEM和三维地质模型，可以实现三维地形和地质体的生成与仿真。
The very word has an unhappy ring in Britain: just now, lots of Lib Dem voters feel compromised by coalition with the Tories, and not in a good way.
但这个词在英国却有不好的意思：就在最近，很多自民党支持者感到自己向临时联盟和托利党妥协，并且方式不近人意。
Last month Vince Cable, the Lib Dem business secretary whose department covers universities, said opposition to fees was unfeasible in the current economic climate.
上月，其部门管辖范围涵盖大学事务的自民党商务大臣文思。凯博称针对征收学费的反对之声在现今这样一个经济环境下已经没有市场。
For example, Digital Elevation Model (DEM) data points are equally arranged in a grid pattern.
例如，数字高程模型(Digital Elevation Model,DEM)数据点在网格图形中均匀排列。
At first, the basic knowledge of DEM and its application in the hydrology were introduced.
首先介绍了数字高程模型的基本知识，及其在水文中应用。
This paper makes an overall comparison between the characteristics of DEM and contour in terrain representation.
本文全面比较了DEM和等高线在地形表达中的特点。
We investigate the flow mechanism of this conveyor in a horizontal configuration by a discrete element method (DEM), applying a periodic boundary and omitting the existence of fluid medium.
我们用离散元(DEM)方法研究了这种运输机在水平配置时的流动机制，施加周期性边界条件并忽略流动介质的存在。
Digital elevation model (DEM) is the fundamental infrastructure of geographical information systems and has wide applications in both military and civil areas.
数字高程模型(dem)是重要的基础地理信息数据，在军事和民用领域有着重要的应用价值。
Therefore, the influences from DEM girds size on the precision of topographical factors and choosing suitable grids size are of great importance in practical application.
因此DEM网格尺寸对地形因子精度的影响以及选择适宜的网格尺寸在实际应用中就至关重要了。
However, how to evaluate and control the quality of all sorts of data in the course of building DEM is a bottleneck problem of establishing various type databases and GIS.
如何评估利控制数字高程模型建立过程中各种数据的质量，是建立各种类型数据库和地理信息系统的“瓶颈”问题。
The SLM is developed to simulate the complicate dynamic process for structural collapse of demolishing blast in frame of DEM(Discrete Element Method).
开发了离散元框架内的网格实体模型（SLM），模拟拆除爆破中结构倒塌的复杂动力学过程。
Finally, it discusses the application of DEM in engineering.
最后讨论DEM在工程中的应用。
This method, based on water tank theory, can deal with billabong grids existed in the DEM as follows.
本文应用水箱原理处理流域DEM数据中存在的洼地问题，提出流域河网识别及编码的新方法。
The result indicates that DEM has wide prospects in numerical simulation of the dense solid-gas flow.
本文的研究结果表明，离散单元法在密相气固相流的数值模拟研究中具有广阔的前景。
Combining with particle impact heat transfer model, DEM method is also used to systematically simulate the heat transfer process in fluidized bed at the level of particle.
将DEM方法与颗粒碰撞传热模型结合，在颗粒层次上对密相流化床内的传热过程进行了较为系统的数值研究。
A method is designed to compress the DEM data with a very low bit ratio which would be hidden in the disguised data.
设计了DEM数据极低比特率压缩方法，压缩数据隐藏在伪装数据中。
It eventually peaked simultaneously with the Fed's first actual tightening move in February 1994, around DEM 1.75.
同时随着美联储在1994年第一次采取真正的紧缩举动，美元达到了顶峰，约为1.75德国马克。
Several judges are in favour of more legal rights for partners who live together, and Lib Dem peer Lord Marks has launched a Bill to bring in a law for cohabitees.
几名法官支持给予同居伴侣更多合法权利，自由民族党人马克斯法官已经颁布了一项针对同居者的法案。
The results show that the DEM method can better simulate the flow characteristics in the bubbling fluidized bed.
结果表明，DEM方法能很好地模拟鼓泡床内的流动特性。
The paper describes how to deal with the modelling of DEM in surveying by using the convex shell problem in the calculation geometry. The method of building TIN is derived.
文章阐述了如何利用计算几何中的凸壳问题来处理测量中的DEM建模问题并推导出了TIN的建立方法。
Otherwise, based on DEM, digital model of KSD distribution, digital Se model and profile-map analysis, the research has a quantitative analysis of macro change rule in microelement distribution.
另外，建立了数字高程模型、数字克山病分布模型、数字硒模型并作剖面图分析，定量分析了地形与微量元素分布的宏观变化规律。
Numerical simulations on particle mixing characteristics of spout-fluid bed were carried out in three dimensional based on discrete element method (DEM).
采用离散元方法，对喷动流化床内的颗粒混合特性进行了三维直接数值模拟。
DEM (Discrete Element Method) is used to simulate the gas-solid flow of a two-dimension fluidized bed with L-type wind caps in this paper.
该文采用离散元素法DEM模型对二维L型定向风帽流化床中的气-固流动特性进行模拟。
In the condition of accepted DEM error, there must be an optimal baseline which makes DEM precision best.
在DEM误差允许的条件下，一定存在着使DEM精度最好的最优基线。
In this paper, a method used for determination of accuracy of DEM data derived from digitized frame photos (or digital image) by digital photogrammetric systems has been developed.
论述一个由数字化画幅式像片(或数字影像)用数字摄影测量系统生成的DEM数据精度的确定方法。
The extraction of contour lines from Grid DEM is a primary function in computer-aided cartography and GIS.
从规则高程格网中自动提取等高线是地理信息系统以及计算机制图的基本功能。
The extraction of contour lines from Grid DEM is a primary function in computer-aided cartography and GIS.
从规则高程格网中自动提取等高线是地理信息系统以及计算机制图的基本功能。
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