3076| 3
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如圖所示,一圓臺(tái)展開圖的邊緣怎么是齒型的? |
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點(diǎn)評(píng)
圓臺(tái)尺寸:上圓直徑300,下圓直徑157,高300,板厚3;掃描成型,但就是在展開后,板的邊緣出現(xiàn)齒型狀。
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