建筑底盘设有电力系统来储存和转换太阳能，满足建筑的每日需求，在不需制热的时候以及温和的春季，它又将多余的电量传输给城市供电系统。
The chassis incorporates electrical systems to store and convert solar power for daily use, and to give back to the electrical grid during the temperate fall and spring months.
就像我们城市里的供电系统，或者柏林墙的倒塌，英语代表着希望，拥有一个更好的未来的希望。
Like the harnessing of electricity in our cities, or the fall of the Berlin Wall, English represents hope for a better future.
随着城市亮化工程的不断深入，传统的路灯及其供电系统存在的一系列问题越显突出。
With the continuous implementation of the urban lighting project, traditional street lamps and their power supply system start to reveal greater and greater problems.
简要介绍了城市轨道交通供电系统中接触轨的组成及安装工艺方法。
It is introduced in this paper the composition and installation techniques of conductor rails in the urban rail transit power supply system.
城市轨道交通牵引供电系统采用12脉波整流机组和24脉波整流机组进行整流，所产生谐波以11次、13次、23次和25次谐波为主。
Urban mass transit adopts 12 pulse and 24 pulse rectifier, whose high frequency harmonics mainly is 11 times, 13 times, 23 times and 25 times harmonics.
本篇论文第一章研究了城市铁路供电系统(包括直流牵引供电系统和交流供电系统)的构成和运行方式。
In the first chapter, studying the structure and running performance include the DC traction power supply and ac power supply system.
由于在小波降噪中不同的阈值适应的信号特征不同，采用多种小波阈值对城市轨道交通牵引供电系统谐波信号进行降噪，并从中选择了最优的降噪阈值，达到对信号的优化处理。
Due to different wavelet threshold fit for different characteristic of signal, various wavelet de-noise threshold was used to decline the harmonics of signal and the best threshold was chosen.
城市轨道交通的供电系统一般采用直流供电，并以轨道作为回流的通路。
In DC rail transit systems, the running rails are usually used as the return conductor for traction current.
城市轨道交通的供电系统一般采用直流供电，并以轨道作为回流的通路。
In DC rail transit systems, the running rails are usually used as the return conductor for traction current.
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