(211205) -- CHONGQING, Dec. 5, 2021 (Xinhua) -- Photo taken on Dec. 5, 2021 shows utility technicians working at the construction site of the Chongqing section of the "Baihetan-Jiangsu" ultra-high-voltage (UHV) power transmission project over the Yangtze River in southwest China's Chongqing Municipality. At a height of about 100 meters over the Yangtze River, a team of utility technicians worked six hours incessantly every day like "spider men", regardless of the winter coldness. The work of the "spider men" is part of the "Baihetan-Jiangsu" ultra-high-voltage (UHV) power transmission project. The 800-kilovolt, direct-current transmission project is celebrated as one of China's "power highways" and is an important part of the country's west-to-east power transmission program. (Xinhua/Huang Wei)