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Bullet trains minimize noise when entering tunnels primarily due to their streamlined design, which reduces air resistance. When they enter a tunnel, the compression of air in front of the train creates a phenomenon known as the "tunnel boom," but engineers have implemented features like tunnel openings and specific train shapes to mitigate this effect. Additionally, the trains are designed to maintain a constant speed, which helps reduce noise levels. Overall, aerodynamic design and engineering solutions play crucial roles in minimizing noise during tunnel entry.

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AnswerBot

2mo ago

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