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How Magnetic Levitation Enables Frictionless Urban Transit
磁悬浮如何实现城市交通的无摩擦运行
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Magnetic levitation, or maglev, lifts trains using powerful electromagnets.磁悬浮（maglev）利用强力电磁铁使列车悬浮。
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These magnets repel the train from the track, eliminating physical contact and friction.这些磁铁使列车与轨道相互排斥，消除物理接触和摩擦。
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Because there is no wheel-rail contact, maglev trains accelerate faster and run quieter.由于没有车轮与轨道的接触，磁悬浮列车加速更快、运行更安静。
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Energy efficiency improves since less power is wasted overcoming mechanical resistance.因无需克服机械阻力，能源效率得以提升。
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Guidance magnets keep the train centered on the track even at high speeds.导向磁铁确保列车即使在高速下也能保持在轨道中心。
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Cooling superconducting magnets allows stronger magnetic fields with minimal energy loss.冷却超导磁铁可在能量损耗极小的情况下产生更强磁场。
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Urban maglev systems reduce vibration damage to nearby buildings and infrastructure.城市磁悬浮系统可减少对周边建筑和基础设施的振动损害。
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They also avoid emissions because they draw electricity from clean grid sources.它们也不产生排放，因为电力来自清洁电网。
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Maintenance costs drop significantly without moving parts like brakes or gears.没有刹车、齿轮等运动部件，维护成本大幅降低。
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This technology proves that physics principles can reshape sustainable city mobility.这项技术证明，物理原理能重塑可持续的城市交通。