a rail through which electric current is supplied to an electric locomotive
例句与用法
1.
Compared to straight electric locomotives diesels save the heavy investment required for overhead wires or third rails . 与架线电力机车相比，柴油机可以节省架线或敷设第三条轨道的巨额投资。
2.
Saitong focuses on developing , manufacturing and selling overhead contact line systems , traction substation equipments , third rail systems etc 公司主要设计、制造和销售铁路接触网系统、牵引变电所设备和城轨交通钢铝复合接触轨系统等。
3.
After expounding the power supply and current collection modes of the rolling stock in shanghai umt pearl line in terms of technology and economy , the author argues that two current collection modes shall be adopted for shanghai umt pearl line , i . e . a third rail collector be on skybridge while the overhead contact line on the ground 摘要阐述了城市轨道交通车辆供电受流方式的特点，并从技术和经济两方面对上海明珠线车辆供电受流方式进行了探讨，提出了明珠线车辆应采用双受流方式，即高架桥上采用接触轨受流器受电，地面采用架空接触网受电弓受电。
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