樓主: chen0394
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一個(gè)神奇的密封問(wèn)題 |
點(diǎn)評(píng)
問(wèn)題是有油和沒(méi)油時(shí)放置一段時(shí)間后一樣有很大阻力,即使拆開(kāi)擦干凈也是這個(gè)問(wèn)題,,所以和油應(yīng)該關(guān)系不大,。
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