1.
Maintenance and Operation of the Fiber-optic Cables in the Maintenance and Administration of the Practice;
经营型维护及在光缆线路维护管理中的实践
2.
Research on the Maintenance Management System of Mobile Communication Optical Cable Line in GanSu Province;
甘肃移动通信光缆线路维护管理体系研究
3.
Design and Implementation of Communication Lines Maintenance System Based on GIS
基于GIS的通信线路维护系统的设计与实现
4.
Study and Application of Special Tower Climbing Machine for Transmission Line Maintenance and Repairing
输电线路维护检修专用铁塔攀爬机研究与应用
5.
Protection, Running and Maintenance of 220kV Micro-Computer Line;
220KV线路微机保护器的运行与维护
6.
Application of Optic-fiber Pilot Relay Protection in 500 kV Transmission Line
500 kV线路光纤纵联保护运行维护
7.
C. It is of comprehensive protection, easy circuit arrangements, convenient maintenance and low price.
C、综合保护，线路简单，维修方便、格低廉。
8.
Discussion on Operation and Maintenance Technology for 750kV AC Transmission Line
750KV交流输电线路的运行维护技术探讨
9.
Maintenance method for earth wire of 500 kV power transmission line after heavy damage by lightning stroke
500kV线路架空避雷线雷击损伤后抢修维护方法
10.
Research on EAM-based Maintenance and Management of Railway Linear Equipments
基于EAM系统的铁路线性设备维护管理研究
11.
Application of the Lidar Technology on Operation and Maintenance of Power Transmission Lines
三维激光雷达技术在输电线路运行与维护的应用
12.
Research of Maintenance Technology for Small Radius Curve and Big Rampway Interval Cwr;
小半径曲线及长大坡道区间无缝线路养护维修技术研究
13.
High-interference circuit used, especially suitable for inspection and maintenance of city pipesnet.
仪器全部采用高抗干扰线路，特别实用于城市管网的普查与维护。
14.
maintenance of submarine cables or pipelines
维护海底电缆或管线
15.
The use of a by-pass around a regulator permits maintenance or repairs without shutting down the line.
采用环绕调节阀的旁路，使得不需要关闭管线即可维护或维修调节阀。
16.
divided conductor protectio
绕组支路断线保护装置
17.
Breaker failure, bus fault and transformer protection
断路器、母线故障保护和变压器保护
18.
We pursue a correct, independent diplomatic line and foreign policy, opposing hegemonism and safeguarding world peace.
我们奉行独立自主的正确的外交路线和对外政策，高举反对霸权主义、维护世界和平的旗帜，