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四分五裂的軸承; |
點(diǎn)評(píng)
這種情況最好做材料金相分析,硬度檢驗(yàn)很片面的。
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點(diǎn)評(píng)
前輩是高手,我會(huì)在后面介紹下大致工況,請(qǐng)前輩不吝賜教
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