单项选择题
铁路货车临修时,轮缘内侧缺损:长度大于()、宽度大于10mm;轮缘厚度小于();轮缘垂直磨耗大于15mm,需更换轮对。
A.30mm,24mm
B.40mm,24mm
C.30mm,23mm
D.50mm,24mm
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单项选择题
A.30mm,24mm
B.40mm,24mm
C.30mm,23mm
D.50mm,24mm
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