查询词典 gis

The efficiency of modeling and identifying can be evidently improved by using the techniques of object oriented modeling, interface finite element grid, unit node code auto-numbering and model parameters setting. At the same time, the capability of GIS analysis features is extended. These techniques will promote GIS's application to groundwater, and speedup the course that theoretic research on groundwater systemic analysis models transfer to productivity.

在地下水地理信息系统中，采用面向对象的地下水建模技术，交互式有限单元网格生成与单元节点自动编号，通过对象属性设置完成模型参数设置，这些不仅提高了模型建立和模型识别的速度，提高了工作效率，而且将推动GIS在地下水研究中的应用，加速地下水系统分析模型从理论研究向生产力转化的进程。

By analyzing the problem of hydrological 3D spatial dispersion in 3D finite differential numeric simulation of porous groundwater flow, as well as discontinuous spatial distribution and asymmetric thickness of porous aquiferous strata and partitive groundwater stratum, the paper presents the GIS-based technique of 3D spatial dispersion of porous aquiferous stratum system .

分析了目前孔隙地下水流三维有限差分数值模拟中对含水层系统三维空间离散存在的问题，针对自然界孔隙含水层与隔水层空间分布的不连续性与厚度的不均匀性，研究了基于GIS的孔隙含水层系统三维空间离散实现的技术路线，提出了基于GIS与不规则六面体元的孔隙含水层系统的三维空间离散方法，最大限度地保证了离散体元中含水层类型的单一性，提高了孔隙地下水流模拟模型三维空间离散的精度。

First, the analysis of the development of PDA and eMbedded GIS bring up in this paper.

首先，本文根据当前基于移动的嵌入式GIS的发展，对Embedded GIS等概念进行了有益的探讨。

According to recent situation of control point data management in practicalness,to tendency and to actual requirement,this essay investigates the organization and input of system data based on MapInfo,based on hard and soft facilities of the computer,based on the technology of GIS,at the same time,this essay puts forward to radical conceptions and methods of the management system of control measurement data.

结合生产实践对控制点测量成果管理的现状、趋势及实际需要，依据GIS的基本原理，以计算机硬软件设备为基础，以地理信息系统为手段，主要针对MapInfo这一系统平台具体讨论了系统数据的组织及入库，提出了GIS在控制点测量成果管理系统的基本构想和方法。

Based on GIS and probability integral approach, a research is done for predicting the subsidence of Beiminghe iron mine.

通过GIS建模全面反映矿区的三维地理、地质信息及其内在属性，应用基于概率积分法和组件技术开发的MSDAS-GIS系统进行开采沉陷预测。

Finally, I hope that all of you willbe GIS experts and will use GIS proficiently.

最后，祝愿大家能够早日成长为一名学有所长、学以致用的GIS人。

Computer aid cotton field nutrients regionalize management based on nutrients spatial interpolating and fertilizer recommendation system based on GIS were studied.

以新疆生产建设兵团芳草湖农场、新湖农场和81、89团为基地，通过多点分散肥料试验建立了综合施肥模型并对几种施肥模型和模型参数进行了研究；应用反射仪测定棉株硝酸盐含量，建立了棉花快速营养诊断追肥指标；应用农田养分分析数据和相关农业技术资料，建立了芳草湖农场GIS数据库；建立了基于GIS、以综合施肥模型为核心的棉田养分分区管理和推荐施肥系统。

Moreover, two classes CBIR system were discussed. Especially, the emphasis was put on the GIS supported CBIR and a set of such querying algebra operators was presented. The system frame and the general schema of CBIR based on image feature index were discussed as well.

并以GIS要素与遥感图像的空间关系为基础，着重分析了GIS支持的遥感图像基于内容查询系统的主要算子，对基于图像特征索引的内容查询，也作了一般形式化的讨论并给出了应用的系统框架。

Component GIS is a kind of application of Object Oriented technology and component software technology in GIS software development.

它是面向对象技术和组件软件技术在GIS软件开发中的应用。

The paper use the GIS methods to creating the basic spatial information database, and processing the polygon data by overlapping analyst, the linear data by network analysis, the statistic data by join analysis, the evaluate data by superaddition analysis, and these methods make the data collection, organization and analyst more easier, and the thematic map make the result more intuitionistic. Especially, through combined the graphics processing and the spatial data operation organically, the spatial overlapping analyst resolved the division from natural elements to administrative evaluate units.

应用GIS技术建立空间基础信息数据库，进行面状要素叠加分析、线状要素网络分析、统计要素链接分析和赋值要素追加分析，使分区数据的采集、组织和分析更加简单；专题地图的应用，也使分区方案的表现更为直观；尤其是GIS空间叠加分析功能通过图形处理与空间数据运算有机地结合，解决了自然分区和行政分区界限中的若干要素的切分问题。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。