铁轨，钢轨用作火车车厢或其它有轮车辆的轨道的钢轨，通常成对使用。

A steel bar used, usually in pairs, as a track for railroad cars or other wheeled vehicles.

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铁轨，钢轨用作火车车厢或其它有轮车辆的轨道的钢轨，通常成对使用。

A steel bar used, usually in pairs, as a track for railroad cars or other wheeled vehicles.

youdao