Group 1: Passenger Transportation Data - During the summer transportation period (July 1 to August 31), the national railway sent a total of 943 million passengers, averaging over 15 million passengers per day [1] Group 2: Technology and Materials Used - The Fuxing high-speed train is equipped with a high-tech "sun protection suit," utilizing aluminum alloy for the body and insulation materials, including aerogel composite, which has a thermal conductivity of only 0.018 watts per meter Kelvin, improving insulation effectiveness by over 15% compared to traditional materials [1] - The air conditioning system in the Fuxing train is designed for high temperatures and uses variable frequency technology for energy efficiency, ensuring a comfortable temperature through intelligent adjustments [1] - The train windows are typically made of hollow or vacuum glass to enhance insulation, and sunshades can physically block direct sunlight [1] Group 3: Safety and Durability Features - The train wheels, weighing over 300 kilograms and nearly 1 meter in diameter, are made from high-strength special steel, capable of withstanding surface temperatures over 50 degrees Celsius and low-temperature impacts down to minus 60 degrees Celsius [2] - The Fuxing train features a "golden bell" design for doors, which ensures a tight seal against rain and wind by pressing the sealing strip against the door frame [2] - Regular inspections are conducted to check for water leakage, and specialized waterproof glue is used for repairs if necessary [2] Group 4: Stability Mechanisms - The train is equipped with a stability system that includes an anti-rolling torsion bar, hydraulic shock absorbers, and an air spring system, which work together to maintain stability during turns or in windy conditions [3]