常見例句雙語例句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)是電力機車的重要組成部分之一，是給電力機車提供動力的唯一有效途徑。 返回 overhead electrical power line