5024| 10
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這個(gè)槽四個(gè)角的圓弧是做什么用的,?見(jiàn)圖,。 |
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點(diǎn)評(píng)
這四個(gè)角1.倒圓角用無(wú)毛刺,。2.加強(qiáng)強(qiáng)度。
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