樓主: 蒙泰
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為何要留1mm? |
點(diǎn)評(píng)
原來(lái)如此!學(xué)習(xí)了!果然有問(wèn)題要多問(wèn),以為是畫錯(cuò)的地方藏著大學(xué)問(wèn)。
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點(diǎn)評(píng)
另一端是圓錐滾子軸承
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點(diǎn)評(píng)
簡(jiǎn)單,把外圈打碎掏出來(lái),哈哈
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點(diǎn)評(píng)
哈哈,我瞎扯的,催眠自己
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