overhead electrical power line

基本解釋

Electrical power line and cable workers construct, maintain and repair overhead and underground electrical power transmission and distribution systems.
電源線和電纜工人建造，維護(hù)和修復(fù)架空線和地下電力傳輸和配電系統(tǒng)。
The railway overhead line-pantograph system is one of the most important components of the electrical locomotive, which is the only way to provide power for the electrical locomotive effectively.
弓網(wǎng)系統(tǒng)是電力機(jī)車的重要組成部分之一，是給電力機(jī)車提供動(dòng)力的唯一有效途徑。