When a high-speed train 'stands upright' in the deep sea, what kind of engineering miracles are born?

When a high-speed train roars past, have you ever imagined it could "stand upright" in the deep sea? High-speed trains and wind turbines are astonishingly similar in aerodynamics. The tip speed of a wind turbine's blade reaches more than 300 kilometers per hour, comparable to the speed of a high-speed train, and both share a high degree of commonality in prioritizing lightweight materials and adaptability to environments such as extreme cold.