查询词典 gis

Rendering 2D GIS layer in 3D environment is the key problem of realizing compact type of the two and three dimensional integration GIS system.

在三维系统中实时渲染二维图层是实现紧密型二三维结合GIS的关键。

The results show that the high frequency resonant phenomena provide an effective means for detecting the partial discharge in GIS with the ultra-high frequency method.

结果表明，高频电磁波在GIS母线中的谐振现象为超高频法检测GIS中局部放电提供了有利条件，同时，可利用电磁波的传播时间对局放源进行准确定位。

Aiming at the present situation of severely lack of water, imperfection of management in groundwater and unsoundness of management technology in Beijing, This paper did research work at technique level in water using technology and means of management, introduced the modes and characters of GIS and GSM wireless transmission, and de...

针对北京市严重缺水、地下水用水管理手段不完善、管理技术不健全等现状，本文从技术层面上研究农村地区的用水技术和管理手段，介绍了现代高新技术GIS及GSM无线传输方式的特点，研制开发了GIS、B/S和GSM等技术相结合的地下水管理系统，为农用井的用水计量管理提供了整体的自动化解决方案。

GIS can deal with the difficult problem. GIS can digitize the unwieldiness map and provide us with facile reliable search and this makes management of mobile communication pipelines easy.

GIS系统的引入解决了上述问题，它可以将笨重的图纸数字化，并提供了灵活、可靠的查询、修改方法，极大地方便了移动管网的管理和维护。

The coupling technology could remedy some defects of the function of environmental imitation in GIS and make EIS into space management system of information in which space information are managed, appliance analyzed and spliced, and made videotex.

从而可以弥补GIS中环境模拟功能的不足，可使EIS纳入GIS的信息空间管理系统，进行信息空间管理、应用分析和信息叠加，并使信息可视化。

With the purpose of managing water resource effectively, using Shanghai watercourse data, Shanghai watercourse information system based on GIS is established by component technology and the implementation methods of its function modules are discussed in this paper. Based on these, GIS integrated technology is applied in water resource administrative area, which is important to utilize water resource reasonably and also can improve its management efficiency.

为了对水资源进行有效管理，以现有上海市的河道数据为依据，运用组件技术创建了基于地理信息系统的上海市河道变化信息系统的设计及各个功能模块的实现方法，在此基础上，进行了GIS系统集成技术在水资源管理领域的应用研究，这对于合理利用水资源、提高水资源的管理效率具有重要的理论意义和实际应用价值。

Through annalistic GIS technique of subassembly and comparison to WebGIS and VC , we decide to adopt VC based on geographical information system of enterprise distribution that was projected for second times.

通过对组件式GIS技术的分析，还比较了WebGIS和VC 等技术，我们决定选用VC 基于进行GIS的开发企业分布地理信息系统。

In GIS, the switching of a disconnector will produce very fast transient overvoltage, which could damage the insulation of GIS and other connected equipments and produce electromagnetic interference into low voltage control systems.

气体绝缘金属封闭开关设备中隔离开关的操作会产生特快速暂态过电压，可能导致GIS本体及其相连的设备绝缘损坏，并可能产生电磁干扰，影响二次设备。

FLEM FOR GROUND SUBSIDENCE CALCULATION AND DAT... LIU Li-min;LIU Han-long;LI Jian-gang;LIAN C... mining engineering;GIS;FLEM;ground subsiden...

基于GIS的地下开挖沉陷计算的有限层法及数据场表达刘立民；刘汉龙；李建刚；连传杰 2005 采矿工程；GIS；有限层法；地表沉陷；数据场；六。。。

It describes mainly the process of systemdesign, including whole design, detail design, database design , security design, data structure and data code scheme, It introduces in detail how to create a graphic file of pipeline data on the MicroStation platform, and the exchange of data between the MicroStation and other GIS application software, At the same time, it introduces how to realize popular manage mode of GIS data on the MicroStation GeoGraphics, namely integratinggraphics and attribute.

本文在分析长沙市地下管线数据现状和目前数据管理情况的基础上，指出建立长沙市城市地下管网信息系统的必要性和紧迫性，阐述了系统的设计过程，包括总体设计、详细设计、数据库设计和安全设计，讲述了系统的数据组织方式及数据编码方案，并详细介绍在MicroStation平台下如何处理数据生成管网图形文件，阐述了系统实现的方法、过程以及与其它系统如何实现数据交换，也介绍在MicroStation GeoGraphics下如何实现当今GIS较为流行的数据管理模式：图属一体化。

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。