不圆：产品是椭圆形(蛋形)从最大直径处到最小直径相差90度。

OUT OF ROUND: Product that is elliptical (egg-shaped) and having its maximum diameter 90 degrees from the smallest diameter.

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新方案是基于椭圆曲线构造的，所以具有安全性高，速度快，密钥最小，简单等优点。

The new scheme is constructed based on elliptic curve, therefore the scheme is possessed of the merits of higher security, higher efficiency, smaller key, and very simplicity etc.

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研究了无穷边界的二阶椭圆问题，探讨了将其转化为一阶系统的最小二乘有限元逼近方法。

A least-squares mixed finite element methods for the first-order system formulation of second-order elliptic problems and a formulation for the infinite boundary conditions are presented.

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