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一堆橡皮筋怎樣可以自動(dòng)分離成一根一根的 |
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點(diǎn)評(píng)
1.用叉子叉,,叉子間距大于防松狀態(tài)下的皮筋直徑,;
2.叉子水平放置,振動(dòng),,使皮筋散開(類似于曬掛面);
3.帶外齒的圓片轉(zhuǎn)動(dòng)分離皮筋,;
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