1.
On the basis of present technology, it is estimated that in suburban areas underground lines cost, on the average, about 8.5 - 10 times more than overhead lines.
根据目前的技术,据估计,在市郊地区地下输电线路的造价平均是架空线路的8.5—1 O倍。
2.
Underground transmission is more expensive than the overhead alternative.
地下输电要比架空线输电成本高
3.
land transportation radio services
地面运输无线电业务
4.
Research on the line faults and its protection of HVDC transmission system in metallic return operation
直流输电系统单极金属回线运行方式下线路接地故障及保护研究
5.
A major difficulty of underground AC transmission lines results from a continuous flow of ″charging current″ between the conductor and the sheath.
地下交流输电线路的一个主要难题由电缆导线与电缆外皮间持续流动的“充电电流”所引起。
6.
Research on Transmission Line Fault Location in Non-Direct Grounded Neutral System Under the Condition of Defect Data
缺陷数据条件下小电流接地系统输电线路故障测距的研究
7.
With some methods, current is introduced into the earth by grounded lengths of wire.
有些方法是用各种长度的接地线将电流输到地下的。
8.
Through power lines electric power goes where it is needed.
电力通过输电线路输送到需要电的地方。
9.
The Research of Transmission Line Tower Grounding Resistance Measurement Method;
输电线路杆塔接地电阻测量方法研究
10.
Reason Analysis and Countermeasures of Overhead Insulation Grounding Line Drop Accident of 500kV Transmission Line.
500kV输电线路架空绝缘地线掉线原因分析及对策
11.
Selector and Locator of Faulted Transmission Line for Single Line to Earth Fault in Power System
电力系统输电线路单相接地故障选线与测距
12.
Test and Analysis of Inductive Voltage on Overhead Ground Wire of 1000 kV UHV AC Line
1000kV交流输电线路架空地线感应电压测试分析
13.
Study on Heat Capacity of Transmission Lines Being Operated;
运行条件下输电线路热载荷能力研究
14.
Study on Audible Noise under AC UHV Transmission Line
特高压交流输电线下可听噪声的研究
15.
Application of Power Line Carrier in Mine shaft Data transmission
电力线载波在井下数据传输中的应用
16.
Cable's dynamic response under ice-rain load
输电线在冻雨荷载作用下的动力响应
17.
The Dynamic Response of Broken-wire Events on Electricity Transmission Tower-line System
输电塔-线体系在断线作用下的动力响应
18.
Dynamic Response of Long-Span Power Transmission Towers Subjected to Broken Wire
大跨越输电塔在线路断线作用下的动力响应