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[主观题]
在平面磨床上磨削一平板,要求保证其高度尺寸,一般应限制工件的()几个自由度。 To grind a flat plate on a surface grinder, its height and size should be guaranteed. Generally, how many degrees of freedom should be limited?
A、A. 3
B、B. 4
C、C. 5
D、D. 6
提问人:网友amyxing
发布时间:2022-01-07