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电信线路     
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  telecommunication lines
     STANDARD AND CALCULATION OF EFFECTS OF DC TRANSMISSION LINES ON TELECOMMUNICATION LINES
     直流输电线路对电信线路影响的标准及计算
短句来源
     Based on the research of the effects of Ge—Nan ±500kV DC transmission line and Zhoushan DC transmission line on telecommunication lines, a method to calculate the standard of danger effects of DC transmission line son telecommunication lines and the interference caused by the DC transmission line are put forward in this paper.
     在研究了葛南±500kV直流输电线路和舟山直流输电线路对电信线路影响的基础上,提出了直流输电线路对电信线路的危险影响标准和干扰影响的计算方法
短句来源
     Mapinfo is a popular Geography Information System, Telecommunication Line Graphics System is a distributed graphicsinformation system based on Mapinfo, used to graphically manage the telecommunication lines of all over the country in three levels whichare telecommunication-bureau-gereral/province/city.
     Mapinfo是流行的地理信息系统,长线图形系统是在Mapinfo的基础上开发的分布式图形信息系统,用于全国电总-省-市级电信线路的图形化管理。
短句来源
  communication line
     Equivalent interfering current is an important parameter to calculate interfering influence of H. V. power line on communication line. It is a statistic value created on the basis of measurements.
     等效干扰电流是计算高压电力线路对电信线路干扰影响的一个重要参数,它是一个建立在测量基础上的统计值。
短句来源
  telecommunication line
     Realization of telecommunication line resource management system based on GIS
     基于GIS的电信线路资源管理系统的实现
短句来源
     Determination of Dangerous Influence Degree of Transmission Line on Telecommunication Line by Probabilistic Method
     用概率法确定送电线路对电信线路的危险影响程度
短句来源
     Mapinfo is a popular Geography Information System, Telecommunication Line Graphics System is a distributed graphicsinformation system based on Mapinfo, used to graphically manage the telecommunication lines of all over the country in three levels whichare telecommunication-bureau-gereral/province/city.
     Mapinfo是流行的地理信息系统,长线图形系统是在Mapinfo的基础上开发的分布式图形信息系统,用于全国电总-省-市级电信线路的图形化管理。
短句来源
     Aimed at the failure rate of transmission line,the dangerous influence degree of transmission line on telecommunication line and its minimum value are determined by probabilistic method.
     针对送电线路故障率 ,用概率分析的方法研究了送电线路对电信线路造成损害的故障率以及这一故障率的最小值。
短句来源
  “电信线路”译为未确定词的双语例句
     Application of GIS to the management systemof telecommunication resources
     GIS在电信线路资源管理中的应用
短句来源
     Research and Application on Telecommunication Circritry Management System Based on WebGis
     基于WEBGIS的电信线路资源管理系统的研究及应用
短句来源
     With the development of communication technique, advanced requirement is presented on telecommunication service management.
     随着通信技术的发展,对电信线路资源的管理提出了更高的要求,管理现代化的呼声也越来越高。
短句来源
     The Implementation of Telecommunication Circuitry Management Based on GIS
     基于GIS的电信线路管理的实现
短句来源
     HV electric line has magnetic dangerous effect on communicating line.
     高压电力线对通信线路影响为磁危险影响,计算非常繁琐,根据《送电线路对电信线路危险影响设计规程》编写了高压电力线对通信线磁危险影响计算程序。
短句来源
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  telecommunication lines
Bimetallic steel/aluminum wire for overhead telecommunication lines
      
Covers protection against lightning of outdoor telecommunication lines using metallic conductors.
      
Fixed telecommunication lines are generally of poor quality, especially outside the capital city.
      
Placement of telecommunication lines avoids or minimises obstruction of private views.
      
Software firms require redundancy in power sources and access to telecommunication lines, back up power, and space to expand their operations.
      
  telecommunications line
For example, information transmitted over a telecommunications line is scrambled at one end, and unscrambled at the other.
      
Used when a minimum 26 AWG telecommunications line cord is not provided or specified.
      
  communication line
It contains eight four-channel modules that record the shapes of single pulse signals, a controller module of the system bus of the crate, a fiber-optic communication line, and an interface card for connection to the ISA bus of a personal computer.
      
It is shown that there is no formal limit on the length of the communication channel in a single-photon quantum cryptosystem with arbitrary dispersion if there is no damping in the communication line.
      
The effect of the laser parameters and modulation on the transformation of the intensity fluctuations in a fiber-optic communication line was studied.
      
Stimulated Raman scattering (SRS) in a long-distance fiber-optic communication line with wavelength-division multiplexing (WDM) is studied theoretically at a high power of the signal transmitted.
      
SRS interaction between two channels in a communication line with an SRS amplifier for which the optical waveguide of the line serves as a nonlinear medium is measured.
      
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  telecommunication line
A private telecommunication line established between trading partners solely to conduct business.
      
An ISP has the equipment and the telecommunication line access required to have POP on the Internet for the geographic area served.
      
At fifty-six stations coastal wave observation data are obtained and sent to PARI by telecommunication line.
      


The general formulas for computing actual shielding factors of high-conductivity overhead ground wires hung on power and tele-communication lines are given. These formulas are derived from a system of finite difference equations representing the relation between the currents in successive sections of the multiply-grounded shielding conductors, and the subsequent substitution of terminal conditions corresponding to the particular circuit arrangement under consideration. It is found that the actual shielding factor...

The general formulas for computing actual shielding factors of high-conductivity overhead ground wires hung on power and tele-communication lines are given. These formulas are derived from a system of finite difference equations representing the relation between the currents in successive sections of the multiply-grounded shielding conductors, and the subsequent substitution of terminal conditions corresponding to the particular circuit arrangement under consideration. It is found that the actual shielding factor can be written as the sum of the intrinsic shielding factor t0 and a correction term evaluating the effect of finite conductance of the ground connections. It is also shown that the shielding factor formulas given in Engineering Report No. 26 of the joint subcommitte on development and research of the Edison electric institute and the Bell telephone system are only special cases of the general formulas given in this article.

本文分别就良导体架空地线架设在电力线路上和电信线路上的两种情况,给出了架空地线对于电信线路的实际屏蔽系数的普遍公式。这些公式的推导,是用有限差分方程组代表多点接地的屏蔽导线的相邻两档之间电流的关系,再代入相应的边界条件而解出。所得实际屏蔽系数的公式可以写成架空地线的固有屏蔽系数t_0和一个考虑了接地电阻影响的校正项之和。同时并证明了爱迪生电气协会和贝尔电话系统共同发展和研究小组的工程报告第26号中所列出的屏蔽系数公式是本文普遍公式的一个特殊情况。

Since open-wire lines still occupy a very large proportion in long-distance equipments in China, "Transposition of conductors" is one of the most important technical means in the field of telecommunication transmission lines. This paper deals with the applications of Walsh functions in transposition patterns of open-wire lines and shows that the "letter type" patterns are in correspondence with Walsh functions ordered by sequence ordering while the "Index type" patterns are in correspondence with Walsh functions...

Since open-wire lines still occupy a very large proportion in long-distance equipments in China, "Transposition of conductors" is one of the most important technical means in the field of telecommunication transmission lines. This paper deals with the applications of Walsh functions in transposition patterns of open-wire lines and shows that the "letter type" patterns are in correspondence with Walsh functions ordered by sequence ordering while the "Index type" patterns are in correspondence with Walsh functions ordered by Hadamard-matrices ordering. In this paper, the fundamental properties of the single-index types, the complex-index types, the symmetry of patterns, and the relative types have been discussed according to Walsh function's characteristics.

通信明线线路在我国电信设备中仍占据着很大比重。“明线交叉”是电信线路传输理论和技术中的一项重要内容。本文结合沃尔什函数在明线交叉程式方面的应用,指出字母表示形式的交叉程式是同序率定序法的沃尔什函数相对应的,而指数表示形式的交叉程式则是同Hadamard矩阵定序法的沃尔什函数相对应的。本文还根据沃尔什函数的一些特性,分析讨论了交叉程式的基本指数同派生指数、奇偶对称性与相互交叉程式方面的基本性质。

Telecommunication Line System is used in the management of telecommunication lines in China. The system suits to the three level management:telecommunication bureau general/province/city. The background of the system,the design of DDB and the implementation model of three level DDB,as well as the design and implementation of telecommunication software are described.

“长线系统”用于全国长途电信线路的维护管理.系统适应电总-省-市三级管理.文中介绍了系统的背景、DDB的设计、三级DDB的实现结构以及通信软件的设计与实现.

 
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