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.
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.
在致力于提供旅客服务的线路上，轨道维护应安排在无车辆运行时进行，以确保安全。
In corridors where there is dedicated passenger service, track maintenance will likely be scheduled during times in which no trains are operating, which will enhance safety.
一般来说，乡村和郊区与市区相比，其网络线路铺设距离大，天气环境状况差，从而其网络维护成本更加昂贵。
Rural and suburban installations typically involve longer distances and tougher weather conditions than urban ones, making upkeep of the network more expensive.
安装，拆卸，维护和修理地上和地下的电话和其他电信传输和配电线路，电缆和相关的硬件。
Install, remove, maintain and repair aerial and underground telephone and other telecommunication transmission and distribution lines, cables and associated hardware.
这种新材料可以用于制造飞机部件、电子线路板和其他长期使用但又不需要进行太多维护的部件。
The new material could make it possible to build airplane parts, circuit boards, and other structural components that last longer and require less maintenance than conventional components.
该系统有效地解决了通信调度部门所面临的线路管理维护被动、测试手段单一和故障定位精度差等问题。
This system effectively solves some problems met by dispatching department such as passive line managing and maintenance, test measure singularity, low precision of fault location, etc.
伦敦的地铁非常乐于每天临时关闭一些站和线路来进行维护，所以一些快捷路线很有可能就不存在了。
The London Underground has the extra joy of having various stations and lines shut temporarily almost everyday for maintenance; so that quick route might not exist.
修理故障。修理线路的问题，更换有故障的部件，有必要的话，对需要调整的部分进行维护。
Correct the trouble. Repair wiring problems, replace faulty components, and service of adjust parts if necessary.
提供数据分析处理功能，为列车运行状态、线路状态的分析和车辆设计及维护提供了第一手数据。
The system has the data analysis processing function, which can provide the first-hand data of the train running status, the line condition analysis and the vehicles design and the maintenance.
“我们正在维护自己的权益，确保在这个线路已运营的列车能够安全的运行，在这些线路上跨州运行的列车一定不能收到影响。”他说。
"We are defending our interests to ensure that the pre-existing, safe movement of trains engaged in interstate commerce can continue on our land without interference," he said.
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.
客运专线桥上采用板式无碴轨道是一种新型轨道形式，它能提供稳定的道床结构，是一种高平顺、少维护线路。
Ballastless slab track on bridge of Passenger Dedicated Line is a track of new type with stable track and bed structure high regularity and less maintenance.
负责强电，变压器，线路等的保养，维护，维修。
Responsible for the power, transformer, power line maintenance, and repair.
系统体积小、重量轻、精度高、实时处理、易操作，对工务段线路维修、维护和行车安全等起到积极作用。
Small bulk, light weight, high precision, real time processing, easily operating, so it have positive effect on the railway maintain, security of railway and so on.
网络可靠性和维护方便、管理有效是有线电视网络建设、运营的首选指标，因此，星型集中分配方式应该作为楼栋单元分配线路的规范。
In contrast, the centralized mode is good at reliability, signal transmission, and management, and should be preferred for the criterion of building-cell distributing circuitry.
该系统基于校园原有的以太网络进行设计，线路敷设成本低，可靠性高，维护管理方便。
The system is designed based on the original campus Ethernet network, so it is lower line laying cost, high reliability, easy maintenance and management.
介绍了低压断路器分别应用于配电线路、电动机和照明的选择方法，并就安装时应满足的具体要求作了阐述，提出了断路器在使用和维护过程中应注意的事。
The various selection methods of low voltage breaker when it was applied in distribution line, motor and lighting are introduced as well as the corresponding installation requirements.
叙述了地电观测系统、外线路的维护、仪器故障的判断与排除，以及辅助设备的维护与保养，以此来提高观测资料的质量。
It is introduced the geoelectric system, safeguard of its circuit system, trouble clearing and AIDS protection and in order to improve the observation data.
第二十九条轨道交通线路运营单位负责轨道交通设施的管理和维护。
Article 29 the CRC line operating unit shall be responsible for the management and maintenance of CRC facilities.
汽车喇叭如何进行日常维护和自我检修喇叭出现上述故障时，应先区分是线路故障还是喇叭本身的故障。
Autombile speaker how steer routine maintanance and ego overhaul speaker to appear above-mentioned break down, it is the fault of a line fault or a speaker to should classify first.
建立程控交换电话网络实现电话通信需要大量的设备费、线路费、维护费和工程费等费用，并且需要一定的施工工期。
Instructing the switching network to realize the telephone communication needs much of equipment charges, lines charges, protection charges, project charges and time.
其设计思想先进，比通常采用串行编码方式传送脉冲的方法可靠性好、准确度高，且线路简单、容易维护。
Compared with usual method adapting the pulse transmission of serial coded mode, it is more reliable and more accurate, the circuit design is simple and easy to be repaired.
专线通信技术特点是通信稳定性好，但需铺设专用通信线路，存在施工量大、综合成本高、维护费用高、旧城区施工难度大等问题。
However, the exorbitant cost of laying special lines and maintenance, great workload and difficulty in construction prevent it from popularization.
基于LOGO ！逻辑模块的船舶辅机电气控制线路易维护保养、易排故障、易修改功能。
Electric control circuit of Marine auxiliaries can be maintained and debugged easily, and its junctions can be changed conveniently, where LOGO! Modules are used.
但我国目前的道岔维护都是故障后的维修，这在高速铁路上将严重影响线路的运营，甚至引发灾难性事故。
However, current maintenance for turnout is when the turnout in the event of failure. This will seriously affect the high-speed railway lines in operation, even cause catastrophic accidents.
数字系统应用RF直接采样前端，简化了前端电子学线路，节约了系统成本并方便了调试和维护工作。
The RF direct sampling scheme is used in HLS digital TBF system, and simplifies the electronics circuits and saves the cost for tuning and maintaining.
数字系统应用RF直接采样前端，简化了前端电子学线路，节约了系统成本并方便了调试和维护工作。
The RF direct sampling scheme is used in HLS digital TBF system, and simplifies the electronics circuits and saves the cost for tuning and maintaining.
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