永磁牵引系统动力更强能耗更低,CR450实现高速行驶却省电节能#绿色轨道交通 Equipped with permanent magnet traction system for stronger power and lower consumption, CR450 balances high speed and energy efficiency. #GreenRailTransit 幸福小筑(💯互Fo❗️❗️) @mengwei73526359 · 2026-06-25