这些光纤线路在铺设前需要耗时几年的规划。
在美国，铜线可能不得不使用一英里远的光纤线路接入到家中。
Data can travel fast on copper wire, but it slows down the farther it goes.
而异常情况包括不可抗拒自然力、提供者的预定停机维护或光纤线路的意外中断。
Exceptions include ACTS of God, the provider's scheduled downtime maintenance, or accidental cutting of the fiber optics line.
用OTDR测试光纤线路时，其背向瑞利散射信号曲线上常出现幻峰。
There may be unreal peaks on backscattering signal curve in the measurement of optical fiber links by OTDR.
由于光纤线路由多根光纤连接而成，因此沿整个线路零色散波长就稍有差别。
It is known that there is a slight difference of zero dispersion along an optical fiber link, because the link is concatenated with lengths of fibers.
光纤线路中的菲涅尔反射使OTDR测试有盲区，文章对该盲区进行了定量分析。
Due to the Fresnel reflection in optical fiber links there will be dead zone existing in the measurement using OTDR. This paper gives a quantitative analysis of this so called dead zone.
分离光纤线路中的两个偏振模式对于提高偏振模色散补偿的精度和速度有重要意义。
Splitting two modes from an optical fiber line is of great importance for the accuracy and speed of compensation.
本文探讨了微波光纤线路中主要器件的高频特性和这些特性对整个光纤线路的影响。
In this paper, the high frequency characteristics of the primary components of microwave fiber-optic link and impact of these characteristics on the overall link performance are examined.
到位的光纤线路在推动城市经济，与一个可以利用基础设施的高度熟练的劳动力同样至关重要。
Just as vital as fiber optic lines in an economically advancing city is the presence of a highly skilled workforce that can make the infrastructure happen and take advantage of it once it is in place.
珊溪水利枢纽工程地质条件复杂，光纤线路较长，自动化元器件分布较广，需要解决的技术问题很多。
Many problems need to be solved in the Shanxi Water Conservancy Project for complex geological conditions, long optical fiber lines and widely distributed automatic components.
实际光纤线路的信号中常常混有噪声，在故障分析中必须将事件点信息从噪声中提取出来，再精确地判断出事件点的位置。
In real optic fiber circuit, signal will be often mixed with noises. During fault analysis, it's necessary to find event information from the noise, and accurately judge position of event points.
对于长距离线路，传统的铜线总是比光纤连接慢。
For long distances, traditional copper cable will always be slower than using a fibre optic connection.
我们希望运营一条去那的线路，但将只是单对的光纤，”斯科梅尔说，并且补充说索霍网络最初建立就是因为电信运营商不能提供这种小众服务。
We'd like to run a fibre out there, but it would only be a single pair, " says Scammel, adding that Sohonet was originally set up because the telcos couldn't offer the kind of niche service he does.
为对抗光纤服务，电缆公司已经将光导线路铺设到区域接点，人们可以通过现有电缆把网络连入家中。
To counter FiOS, the cable companies have run fibre to the neighbourhood node, from where the connection continues to the home through their existing cable.
最近，公司的业务扩张到了其他重视细节的工作--像注意观察丹麦的光纤网络，以确保架设新的线路时不会意外的切断旧的线路。
Recently, the firm has expanded into other detail-centered work—like keeping track of Denmark's fiber-optic network, so crews laying new lines don't accidentally cut old ones.
ADSS工程设计是一项综合性的系统工程，涉及到机械、电气、地理、气候等因素以及线路、机械、光纤光缆等专业。
ADSS engineering design is a complicated system engineering, deal with mechanical, electric, climatic and geographic factors and the specialized subjects of line, mechanical, optical fiber and cable.
接着，叙述波分多路在光纤传输线路的应用，对加大传输容量非常有效。
Then, it explains the application of WDM/DWDM on optical fiber transmission line.
接着，叙述WDM在光纤传输线路中的应用，对加大传输容量非常有效。
Then, it explains the application of WDM/DWDM on optical fiber transmission lines.
同轴电缆与光纤缆线是局域网络常用的通讯线路，提供快速的数据传输，安装容易。
Coaxial and fibre-optic cables are popular communication lines for LANs because they provide fast data transmission and are easy to install.
在这个方面受过训练的人可能要知道如何和维护电话设备、语音信箱系统、光纤和微波通信线路，以及移动通信设备。
A person trained in this field may need to know how to set up and maintain telephone equipment, voicemail systems, fiber optic and microwave communication links, as well as mobile radio equipment.
光纤电流差动保护是高压线路主保护的发展趋势。
The main development trend of high voltage transmission line's protection is the line fiber optical differential protection.
光纤通信线路检测到的电功率随差分群延迟变化，可以作为PMD补偿的反馈控制信号。
Electrical power, changing with differential group delay (DGD) and detected from an optical communication link, can be used as feedback signals of compensating for PMD.
介绍一种适用于高压线路光纤纵差保护的通信方案。
This paper presents a fiber communication scheme applied to the current differential protection of the high voltage transmission line.
光纤电流差动保护是高压超高压线路主保护的发展趋势。
Fiber optical current differential protection is the main protections development trend of high and ultra high voltage transmission lines.
光纤复合架空相线(OPPC)的结构与光纤复合架空地线(OPGW)雷同，但从功能到应用环境却有原则区别，而且OPPC更适合于老线路换线工程。
The structure of OPPC is identical with OPGW, but it has principle difference from function to application environment seriousness and OPPC is better to use for retrofitting of old line.
光纤机械接续技术在国内1990年以后一直被应用在线路抢修、特殊场合的小规模应用等等工程实践当中。
After 1990, the optical mechanical connection technique in our country has been used in engineering practices like circuit rush repair, and small scale application in some special occasions.
摘要：本文作者介绍了光纤保护原理，对高压输电线路保护探讨进行了探讨，供同行参考。
Abstract: the author describes the principles of optical fiber protection, protection of high voltage transmission lines, for reference.
陆上线路可以是金属或光纤电缆或者微波线路。
文章对线路维护工程中的光缆线路障碍查找、光纤衰减均匀性、光纤接续和偏振模色散（PMD）等问题进行了分析。
This paper discussed the trouble shooting, attenuation uniformity of optical fiber, optical fiber splicing and PMD problem in the maintenance of optical fiber line.
文章对线路维护工程中的光缆线路障碍查找、光纤衰减均匀性、光纤接续和偏振模色散（PMD）等问题进行了分析。
This paper discussed the trouble shooting, attenuation uniformity of optical fiber, optical fiber splicing and PMD problem in the maintenance of optical fiber line.
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