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[单选题]
最高运行速度不大于160km/h的客车轮对段修时,用止端螺纹塞规测试,在距端面()内须止住,且止规不得有明显晃动(手试)。
A.2扣
B.3扣
C.4扣
D.5扣
查看答案
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A.2扣
B.3扣
C.4扣
D.5扣
A.≤160km/h
B.≤120km/h
C.>160km/h
A.≤120km/h
B.>120km/h
C.≤160km/h
D.>160km/h
A.≤120km/h
B.>120km/h
C.<160km/h
D.>160km/h
A.20mm2
B.30mm2
C.40mm2
D.50mm2