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1月20日，中国铁路北京局集团有限公司怀柔北机区列车司机在模拟驾驶训练基地进行模拟驾驶训练。春节来临之际，中国铁路北京局集团有限公司正充分利用高科技设备，加强列车司机模拟训练和列车、轨道维护保养，千方百计保障旅客安全出行。新华社 李安 供图