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鋼管的標(biāo)準(zhǔn)問(wèn)題 |
點(diǎn)評(píng)
我覺(jué)得大鋼廠也不一定沒(méi)有這種情況,關(guān)鍵是不能確定由于圓度誤差引起的應(yīng)力集中有多大,,會(huì)不會(huì)在設(shè)計(jì)扭矩下就變形了
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