单选题某曲轴轴颈测量结果为：DIx=290．26，D1y=290．50，D2x=290．16，D2y=290．30mm，则x纵截面的圆柱度误差为（）。A0.05mmB0.10mmC0.12mmD0.20mm
单选题
某曲轴轴颈测量结果为：DIx=290．26，D1y=290．50，D2x=290．16，D2y=290．30mm，则x纵截面的圆柱度误差为（）。
A
0.05mm
B
0.10mm
C
0.12mm
D
0.20mm
参考解析
解析：
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