Group 1 - The article discusses how high-speed trains, specifically the Fuxing intelligent train, maintain a comfortable environment for passengers and drivers despite high external temperatures [1][18] - The driver's cabin is equipped with an electric sunshade that blocks direct sunlight, preventing rapid temperature increases and protecting equipment from overheating [4][7] - The independent air conditioning system allows drivers to operate in a comfortable temperature even when external temperatures reach nearly 40°C, reducing fatigue caused by heat [9] Group 2 - The train's windows are made of double-glazed glass filled with inert argon gas, significantly reducing heat transfer and enhancing insulation [11] - The friction between the wheels and tracks generates heat, especially in high temperatures, but the wheels are made from high-strength special steel with a melting point exceeding 1000°C, ensuring safety and reliability [13][15] - These carefully designed "sun protection and heat prevention" features enable the Fuxing intelligent train to operate safely and stably under extreme conditions, providing a comfortable travel experience for passengers [18]