利用三角级数法模拟了轨道的不平顺，采用列车编组和桥梁组合的模型，建立了车桥耦合振动方程。
By simulating the track irregularities with trigonometric series method, the train-bridge coupling vibration equations are established based on the combined modal of train formation and the bridge.
城市轨道交通列车编组形式是确定轨道交通工程规模的重要原则之一。
The composition of trains is one of the most important elements to decide the scale of a rail transit project.
近几年，动车组以其编组灵活、方便、快捷、安全，可靠、舒适等优势备受世界各国铁路运输和城市轨道交通运输的青睐。
Recently, CRH is famous for its convenience, safety, comfort, high-speed, flexible organization and favored by railway transportation and city orbit traffic transportation.
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