Core Viewpoint - The news highlights the advancements in China's electrified railway technology, particularly focusing on the successful trial operation of the Chongqing section of the Yuxia High-Speed Railway, which significantly reduces travel time and integrates multiple districts into a "one-hour economic circle" [1]. Group 1: Electrified Railway Development - The Yuxia High-Speed Railway achieved a test speed of 385 km/h, demonstrating the advanced capabilities of China's electrified railway technology [1]. - By the end of 2024, China's total railway operating mileage is expected to reach 162,000 kilometers, with high-speed rail accounting for 48,000 kilometers and an electrification rate of 75.8% [1]. - The progress in the "four electrical systems" is crucial for modern railway development, serving as the power source and nerve center of the railway [1]. Group 2: Technological Innovations - China has fully mastered the design and construction technology of high-speed electrified railways, having developed over 150 industry and national standards and more than 1,000 authorized patents [2]. - The domestically produced constant tension catenary wire laying vehicle has achieved complete independent intellectual property rights, reducing manufacturing costs by 43% [2]. - The precision and sensitivity of the catenary wire tension control have significantly improved, with overall straightness precision controlled within 0.05 mm, surpassing the acceptance standard for high-speed rail [2]. Group 3: Smart Construction Technologies - The railway sector is advancing the application of smart construction technologies, utilizing big data, 5G, cloud computing, and drones to enhance operational efficiency [3]. - The implementation of the 4C visual intelligent analysis system has transformed high-speed rail catenary network defect detection, increasing the detection of effective hazards by ten times and improving analysis efficiency by over 80 times [4].