查询词典 gis

The paper briefly introduces the prominent characters of GR-660 Car-borne γ energy spectrum measurement system , the meaning of whole energy spectrum information mining and GIS technique application in the field of data management and information extraction.

简要介绍了GR-660车载伽玛能谱测量系统的显著特点、全能谱信息挖掘的内涵和GIS技术在数据管理和信息提取中的应用。

This paper describes a GIS-based decision support system for Environmental Impact Assessment of rehabilitation of coal mine dump.

为此，在排土场空间信息和属性信息数据库建立的基础上，基于GIS技术开发了一个集数据存储、管理、分析和决策支持为一体的排土场植被恢复环境影响评价决策支持系统。

To make the design and manufacture of the spring contact more standardized,the authors analyzes the causes of such problem as contact resistance fluctuation of the spring contact in use,and proposes a corresponding structure design method of spring contact.Comparison and analysis are performed for the properties of cobalt bronze and beryllium bronze,and a standardized design scheme of spring contact is presented,in order to support the design,manufacture,operation and maintenance of GCB/GIS.

为了使弹簧触头结构的设计制造更加标准和规范，笔者对近两年来弹簧触头在使用中出现的接触电阻波动等问题的原因进行了分析，提出了相应的结构设计方法，对钴铜丝和铍青铜的材质性能进行了比对和分析，并给出了弹簧触头设计的规范化方案，对GCB/GIS的设计、制造、运行维护有一定的指导意义。

Water requirements of several main crops were analyzed using Penman-monteith equation and GIS technique. A model of synthetic benefit analysis on crops was built to study the compensation of water resources.

应用GIS技术及FAO推荐的Penman-Monteith方法计算了主要作物的需水量，建立了包含水资源成本的作物综合效益研究模型，并对水资源补偿问题进行了初步探讨。

We used GIS got sum planting area, used GVG got crop planting index.

在本次研究中，我们利用3S技术，选择合适的TM遥感数字图像，建立了目视解译标志，在高性能计算机平台上经人机交互解译，应用GIS软件提取耕地总面积，由GVG软件获得作物种植面积指数，应用耕地总面积种植指数完成各个不同作物的种植面积的提取，取得了满意的结果。

In order to make the current grade-determination method of the cultivated land more rational, the paper has analyzed the natural and social economic factor of cultivated land quality deeply. Many ideas, including the theoretical foundation on grade-determination, the authenticity of the basic materials, the division of the index district, the determination of the appointed crops and their parameters , the largest theory output of the crop and the definition of the suitable range about index district, the control of the equivalence district in the county , the revision of the multiple crop index and the application of GIS ,etc. have been deeply discussed, and the current grading model of the cultivated land has been revised.

为使现行耕地分等方法更趋合理，本文以耕地质量评价的相关理论为基础，强调了基础资料对等别划分的重要性，明确了获取方法，并对指标区的划分、指定作物及其参数的确定，作物理论最大产量及其适用范围的界定，县域范围内等值区的控制，土地利用系数的修正、复种指数的修正和GIS在耕地分等中的应用等方法进行了深入探讨，修正了现行耕地分等模型。

It's necessary to have a simple and systematic digital model in thinning decision-making. In the paper, the tree location map of 150 m x 30 m Luanta-fir in Hui-Sun Forest Experimental Station were digitized in GIS and thinning simulation by random, Telathaki-Wadali-Chi, DBH class and crown competition index method.

本研究系利用GIS 配合林木位置图，以惠荪林场之150m x 30m 香杉采穗园为研究材料，以生产大径材为目的的考量下，针对疏伐木之选择，利用随机法、寺崎渡氏法、胸径级法、树冠指数法等四种方法加以模拟、评估、探讨。

This text introduces the principles and functions of three-position disconnecting switch of 31.5 kV GIS in Liuliping substation, analyzes the secondary control mode of the device through the diagrams of logical relation and table of status, points out that the equipment safety operation is affected by incorrect design for adopting false status table and additional 4 illegal control modes to 4 normal control modes on switches.

沈世忠，黄东红摘要：本文介绍了六里坪变电所31.5 kV GIS三工位开关的原理和作用，并对该设备的二次控制方式运用逻辑关系图和状态表进行了分析，指出由于设计中采用了错误的状态表，运行中除了4种正常开关控制方式以外，增加了4种非法控制方式，影响了设备安全运行。

The main works of this paper are as follows.First, according to the three-step method, 1-D unsteady flow model in river network is introduced. A new topological structure is presented to describe and store the topology information and data in river network ,which realises the connection between GIS and the numerical program of hydraulic calculating and turns the program into a universal one .A new formula of internal boundary conditions with double-recursion algorithm is deduced, and the relationship of recursive coefficient between imaginary channel length and non-imaginary channel length is presented ,which makes sure that the model can comprise the numerical simulation of the internal boundaries such as side pipe outflow ,barrage, slice gate and drainage pump station.

主要工作如下：(1)根据三级解法建立了一维河网非恒定流模型，并提出了一种新的数据结构来描述和储存河网拓扑信息，方便了GIS平台和数值计算程序的衔接，实现了三级解法程序的通用性；从河段方程组出发，根据虚设河段法推导出了内边界条件的双追赶法公式，指明了虚设河段的追赶系数和非虚设河段追赶系数的关系，从而使模型可以模拟集中旁侧入流、堰、闸、水泵等内边界对行洪过程的影响。

This paper discusses the relation between urban drainage pipe systems planning and GIS.

本文结合城市排水管道系统规划的具体需求，就GIS空间分析功能在城市排水管道系统规划中的各种应用方式进行了探讨。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。