Use standard arithmetic operators for Numbers and a concatenation operator for combining strings.

对于数可使用标准算术运算符，对于组合字符串可使用串联运算符。

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Then, Lagrange arithmetic operator is applied in variation principle of finite deformation resilience to establish a generalized variation principle of springback.

然后应用拉氏乘子法于有限变形回弹变分原理建立有限变形广义回弹变分原理。

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In the section of binarization algorithm. This paper comes out a synthesized method from two algorithm: a local and dynamic method based on LOG arithmetic operator and a global method based on Ostu.

在二值化算法部分，本文提出了一种基于LOG算子的局部动态阈值和基于最大类间方差的全局阈值的综合算法。

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