The helicopter lifted up the steel pylon, transported it to the site, and dropped it gently into place.直升飞机把高压电缆铁塔吊起, 运至工地, 然后轻轻放下使之就位.The cables intersect the tower or pylon at different heights.钢索在桥塔或塔柱的不同高度上相交.Erectio...
The cables intersect the tower or pylon at different heights.钢索在桥塔或塔柱的不同高度上相交.The helicopter lifted up the steel pylon, transported it to the site, and dropped it gently into place.直升飞机把高压电缆铁塔吊起, 运至工地, 然后轻轻放下使之就位.For exa...