1.
overhead and underground system
架空线和地下线系统
2.
Research on the Stracture Optimization of City Underground Tubeline System
城市地下管线系统建设架构优化探讨
3.
Combinations of both overhead and under-ground HVDC line segments frequently occur.
高压直流架空线路和地下线路分段的组合也常采用。
4.
Immunity specification of open wire carrier system to the interference from the radio broadcasting and telecommunication
GB/T7434-1987架空明线载波通信系统抗无线电广播和通信干扰的指标
5.
Space Arrangement of Basement Trench Commonly Shared by M & E Ducts and New Supporting Stand Application in Terminal Section of Shanghai Pudong International Airport Phase Ⅱ Project
上海浦东国际机场二期航站区工程地下室共同沟机电系统管线空间布置及新型支架的应用
6.
Underground transmission is more expensive than the overhead alternative.
地下输电要比架空线输电成本高
7.
Construction and Operation Analysis of Overhead Transmission Line On-line Monitoring System
架空线路在线监测系统建设及运行分析
8.
Scheme on solving Low Resistance Grounding System Overhead 10kV Distribution Line Fault Based on Automatic Switch
基于自动开关的小电阻接地系统架空10kV配电线路故障处理方案
9.
Impacting Factor Recognition Based Reliability Management System for Overhead Transmission Lines and Its Evaluation Model
基于影响因素识别的架空输电线路可靠性管理系统和评估模型
10.
Study on Wireless Intrusion Detection Systems Under 802.11i Security Infrastructure
802.11i安全架构下无线入侵检测系统研究
11.
Urban underground pipeline is the lifeline in a city.
城市地下管线系统是城市的“生命线”。
12.
Research on Chongqing Urban District of High-voltage Overhead Power Line Going Underground
关于重庆主城区高压架空线下地的思考
13.
Suggestions on Converting Overhead Power Lines into Underground in Chongqing Urban Zone
重庆主城区实施电力架空线下地的探讨
14.
The Research and Design of Overhead Line Aided Design System Based on Geographical Information System;
基于GIS的架空线路辅助设计系统的研究与设计
15.
Optical Fibre Sensor System to Test Strain in Power Cable;
高压架空线路应力测试的光纤传感系统
16.
Discusses the Shanghai Track Transportation Nine Lines are Built on Stilts the Rigid Contact Network System
浅谈上海轨道交通九号线架空刚性接触网系统
17.
A system for scheduled air transport of passengers and freight.
航线运送乘客和货物的固定空中航线系统
18.
The collapse of the poles was attributed partly to the weight and resistance of the aerial cable.
电线杆的倾倒部分地是由架空电线的自重和阻力所引起的。