曲线段轨距可适当加宽，如机车和矿车的轴距为1100mm以上，而曲线半径在30～100m，其加宽值最好为（）。_轨道工考试_全学科试题题库

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曲线段轨距可适当加宽，如机车和矿车的轴距为1100mm以上，而曲线半径在30～100m，其加宽值最好为（）。
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