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1.The train wheel bridge supports the weight of the train and keeps it from falling off the track.
火车轮桥支撑着火车的重量，防止它从轨道上掉下来。
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2.The engineer used the train wheel bridge to reinforce the structure during construction.
工程师利用火车轮桥加固了结构。
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3. The train wheel bridge is essential for maintaining safe travel conditions on railways.
火车轮桥对于维护铁路上安全旅行条件至关重要。