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同樣的孔,,兩種標(biāo)注方法,,加工方法的差異 |
點(diǎn)評(píng)
劃線問(wèn)題而已,,不建議標(biāo)成右圖那樣,可以請(qǐng)車(chē)工劃線
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點(diǎn)評(píng)
加工中心可以達(dá)到um級(jí),,顯然比右邊的絲級(jí)來(lái)的高
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