单项选择题
A.0.6~0.7 B.0.5~0.7 C.0.6~0.8 D.0.7~0.9
A.轴颈卸荷槽 B.轮座 C.车轴 D.轴身
A.1mm B.1.5mm C.2mm D.3mm
A.0.075mm B.0.54mm C.0.58mm D.0.75mm
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