paper plane folding的意思|示意
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纸飞机折叠
paper plane folding的网络常见释义
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paper plane folding相关例句
This paper studies the area of plane closed folding by complex number method and proves several propositions about area of plane closed folding.
利用平面闭折线有向面积的概念和行列式的性质推广了一个面积问题。