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求圓管與其展開圖上的對(duì)應(yīng)結(jié)構(gòu)的精確畫法? |
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點(diǎn)評(píng)
這活就是普工干滴,用鉗工的成本都高,,更不能用“大工匠”,。
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點(diǎn)評(píng)
不僅僅是麻煩事,,應(yīng)該是沒法看了吧!
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