【单选题】
轨道线路静态几何尺寸允许偏差管理值正线、试车线水平作业验收标准为___。
A. 2mm
B. 3mm
C. 4mm
D. 5mm
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答案
C
解析
暂无解析
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轨道线路静态几何尺寸允许偏差管理值正线、试车线高低作业验收标准为___。
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轨道线路静态几何尺寸允许偏差管理值车辆段(场)高低经常保养标准为___。
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