Although there are popular urban metro systems, railway infrastructure is limited.
尽管城市地铁系统人气十足，铁路基础设施依然是很有限的。
Bilingual electronic stop reporting systems shall be promoted at appropriate times among the city's bus and metro systems.
全市公交、地铁系统适时推广中英文电子报站系统。
The paper describes the principles and status of stray current corrosion in metro systems, the methods for monitoring and controlling this kind of corrosion.
本文论述地铁杂散电流腐蚀的原理，介绍地铁系统中杂散电流腐蚀的状况、监测和防治地铁杂散电流腐蚀的方法。
And there will be new metro lines and transport systems.
A到时候将有更多的新地铁线路和新的交通系统。
Urban metro lines will also expand dramatically from 620 miles to 2,800 over the next ten years, as the number of cities boasting such systems doubles from 11 to at least 22.
接下来的十年里，城市快轨将急速从620英里增至2800英里。建有城铁的城市数量也将翻倍，从11个增加至22个。
This paper introduces the integration of UPS and intelligent time distribution technique of weak current systems in rail transit and its application in Shenzhen Metro Line 3 .
提出了城市轨道交通采用弱电系统后备电源整合与智能化计时配电管理的设计理念，并在深圳地铁3号线中应用。
Guangzhou Metro station has used enamelware steel cladding panel systems decoration panel for it wall.
广州地铁车站采用了搪瓷板墙板系统作为墙面装饰板。
B and there will be new metro lines and transport systems.
而且到时将有新的地铁线路和新的交通系统开始运行。
Since then, Siemens has always been the project partner of Guangzhou metro in terms of turnkey project, signalling systems, metro cars, electrification and propulsion systems and products.
自此，西门子一直作为广州地铁的项目合作伙伴，包括“交钥匙”工程、信号系统、地铁列车、电气化与牵引系统及产品。
Thee existing solutions to traffic jam mainly aim at creating metro bus systems and broadening major roads.
现有的交通拥堵解决方案主要针对地铁公交系统和扩大主要道路。
This article mainly compares the signal systems between line 1 and line 2 in Nanjing metro.
文章主要以南京地铁一号线及二号线的信号系统进行对比。
Negative impedances lead to DC-link voltage and current oscillation in metro traction converters and so to reduction of stability of traction drive systems.
负阻抗会引起地铁车辆牵引变流器直流侧电压、电流振荡，降低牵引传动系统稳定性。
Negative impedances lead to DC-link voltage and current oscillation in metro traction converters and so to reduction of stability of traction drive systems.
负阻抗会引起地铁车辆牵引变流器直流侧电压、电流振荡，降低牵引传动系统稳定性。
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