Others are bold, such as electrifying more track (only a third of Britain’s railway is electrified, low by Western standards) and building lines in crowded cities.

另一些则很大胆，比如使更多轨道电气化（目前只有三分之一的英国铁路实现电气化，低于欧洲标准），在人口密集的城市兴建新线路。

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The two rails are not only signal lines of track circuits, but also loop current line of locomotive traction current in electrified railway block.

电力牵引区段的两条钢轨，既作为轨道电路的通道来传输信号电流，又作为牵引电流的回路来传送牵引电流。

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The effect of track circuit unbalance current to the signal device in the electrified section and protection schemes are introduced in the paper.

论述了轨道电路不平衡问题对电化区段信号设备的影响及预防处理措施。

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Metro-North President Howard Permut calls the work the wholesale reconstruction of a two-track electrified railroad.

WSJ: How the Conn. train crash will affect commuters

Parts of the Leeds to York track which have not yet been electrified will also be upgraded, meaning the journey from York to Manchester would also be quicker.

BBC: Electrified train lines to cut TransPennine journey times