6947| 16
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關(guān)于平面度的名義尺寸 |
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點(diǎn)評
長的是基準(zhǔn),短的是被測要素,拋開圓環(huán)的話,肯定就是直徑了, 沒異議,但是現(xiàn)在是圓環(huán),從加工的角度講,圓環(huán)要比原平面容易保證吧?
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點(diǎn)評
要是最外面的直徑就是0.025
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