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關(guān)于鉆頭的幾個(gè)問題---討論 |
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點(diǎn)評(píng)
扭矩變大,同樣的孔頂角越小接觸面越大,扭矩大小得比相同孔徑的時(shí)候,只要是沉孔,肯定是頂角越大,扭矩越小
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回復(fù) 10# 夕凡 的帖子
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