2) terrestrial network
地面网
1.
This paper discusses the influence of height varying in the projection surface of terrestrial network when applying results of hugh accuracy positioning by satellite observations to Gauss coordinate system.
由于我国许多矿区平面控制网采用投影面为任意高程面（测区平均高程面或抵偿面）的独立坐标系，当GPS网和地面网在高斯平面坐标系中进行联合平差时，应顾及投影面高程变化时对高斯平面坐标的影响。
2.
Hence the research on the combination of GPS and terrestrial networks is important in applying GPS surveying technique.
显然 ,有关 GPS网与地面网联合处理的研究在 GPS测量技术应用中是重要的。
3.
Terrestrial network and GPS network are adjusted separately and mixedly.
本文讨论了ＧＰＳ网与地面网的联合布设，分别对地面网与ＧＰＳ网进行独立平差与混合平差，并对其平差的精度结果进行了比较和分析。
3) underground pipeline
地下管网
1.
After the cathodic protection measures ie the deep well anode bed plus impressed current were adopted for the underground pipeline network of Eureka unit in the refinery of Yangtz Petrochemical Company, the protection voltage was - 0.
扬子石化公司炼油厂尤里卡装置地下管网采用以深井阳极地床外加电流为主、牺牲阳极为辅的阴极保护措施后,保护电位处于-0。
2.
The rhythm of urban life had been greatly accelerated along with the rapid development of the city informalization,a lot of underground pipelines,such as the water supply pipeline,power supply pipeline,heating pipeline,and so on,had been used more frequently.
各种管道纵横交错、结构复杂,这就使得城市地下管网信息的现代化管理面临严峻的考验。
3.
This paper is written in coordination with the research of the underground pipeline information system.
通过对上海市某一区块的地下管线资料进行分析调研,基于Visual Basic平台自主开发了一套功能针对性强的区域性城市地下管网管理信息系统,实现了地下管线资料的空间数据管理与属性数据管理的一体化,具备地下管线的建库(数据录入与管理)、数据的动态更新、管线的信息查询、空间分析、成果图输出等实用功能。
4) Underground pipe network
地下管网
1.
Survey and drawing and data management of campus underground pipe network;
校园地下管网测绘与数据管理
2.
Preliminary discussion on underground pipe network information system building in Kunming;
浅谈昆明市地下管网信息系统建设
3.
The construction of underground pipe network system with virtual reality;
地下管网虚拟现实系统的构建
5) underground pipelines
地下管网
1.
Design of model of spatial data mining in GIS of city underground pipelines;
城市地下管网GIS中的空间数据挖掘模型设计
2.
In this paper,the application and development of information system for urban underground pipelines are discussed.
讨论了城市地下管网信息系统的产生、发展与应用,介绍了二维、三维和基于Web技术的地下管网信息系统的开发平台和开发技术,指出了地下管网信息系统的发展趋势。
3.
Underground pipelines is a huge and important public procurement network in modern cities, and the characters of underground pipelines can be generalized as various sorts, complex structure and volume data.
地下管网是现代化城市一个既庞大又重要的公共供应网络，具有种类繁多、结构复杂、数据量大等特点。
6) underground pipeline network
地下管网
1.
An elementary research on MIS development of enterprise s underground pipeline network;
企业地下管网管理系统开发的初步研究
2.
Design and realization of Urban underground pipeline network information system;
城市地下管网信息系统设计与实现
3.
In light of various sewage sources,the discrete variable optimization method is used to design a synthesized underground pipeline network system to collect and re-use the sewage,in order to transform the consumptive mode to the re-use mode for the fresh water resource.
针对各种污水源,采用离散变量优化设计方法,建立了地下排污管网系统优化设计的目标函数和约束条件,构建了该系统的离散变量优化设计模型;在考虑地势-地貌对离散变量优化影响的条件下,提出了在离散变量空间中的模式搜索法;建立统一地下管网汇集和利用系统,得到了使水资源从消耗模式向重复利用模式转化的最佳管网布局。
补充资料：城域网(见计算机网络)
城域网(见计算机网络)
metropolitan area network, MAN
ehengyuwQng城域网(metropolitan area netwo次，MAN)分布范围可覆盖几个街区到整个城市的计算机网络。见计算机网络。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条