单项选择题
精磨外圆时,背吃刀量一般为()
A.0.01~0.025mm
B.0.025~0.05mm
C.0.001~0.004mm
D.0.005~0.015mm
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单项选择题
A.0.01~0.025mm
B.0.025~0.05mm
C.0.001~0.004mm
D.0.005~0.015mm
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