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[单选题]120km/h A.2mm
B.3mm
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[单选题]120km/h A.2mm
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[单选题]vmax≤120km/h正线道岔支距轨向的经常保养标准是( )。333020202
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[单选题]160km/h≥线路允许速度Vmax>120km/h正线道岔支距轨向的作业验收标准是( )。
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B.3 mm
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[单选题]120km/h A.4mm
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[单选题]120km/h A.3mm
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[单选题]120km/h A.3mm
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[单选题]120km/h A.3mm
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[单选题]120km/h A.3mm
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[单选题]vmax≤120km/h正线道岔支距轨向的临时补修标准是( )。333020202
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B.4mm
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[单选题]vmax≤120km/h正线道岔支距轨向的作业验收标准是( )。333020202
A.2mm
B.3mm
C.4mm
D.5mm
[单选题]线路允许速度Vmax≤120 km/h正线道岔支距轨向的作业验收标准是( )。
A.2 mm
B.3 mm
C.4 mm
D.5 mm