2025年，那些举世瞩目的重大工程

Infrastructure Development - The Baoyin High-speed Railway's Baohui section was officially opened on December 23, 2025, completing the full operation of the Baoyin High-speed Railway and enhancing the high-speed rail network in the northwest region of China [3] - The Xi'an to Yan'an High-speed Railway commenced operations on December 26, 2025, with a total length of 299 kilometers and a design speed of 350 kilometers per hour, marking it as the highest-speed railway crossing the Loess Plateau [6] - The Guizhou Huajiang Gorge Bridge was completed and opened to traffic on September 28, 2025, with a total length of 2890 meters and a main span of 1420 meters, becoming the world's highest bridge at a vertical height of 625 meters above water [9] Energy Infrastructure - The Xiong'an 500 kV ultra-high voltage substation, a key hub for the new energy transmission channel, was officially put into operation on December 7, 2025, facilitating the introduction of clean energy from Inner Mongolia and Hebei into the Xiong'an New Area [14] - Xinjiang plays a crucial role in China's west-to-east electricity transmission, with multiple "Xinjiang electricity export" channels continuously delivering power to central and eastern regions, promoting economic growth and regional coordination [11] Renewable Energy Development - Gansu Province's Jiuquan City has developed a complete wind power industry chain, achieving a comprehensive capacity of 20 million kilowatts of wind power equipment annually, leveraging its rich wind energy resources [17] - Shandong Province has actively built marine ranches, establishing 139 provincial-level and above marine ranches by November 2025, including 71 national-level ones, accounting for 38% of the national total, thus forming a complete industry chain from breeding to deep processing [19]