较详细的演绎了风洞测压试验中关于风载体型系数的理论推导公式，为风洞试验数据处理提供了帮助。
The paper deduces the theoretical derivation of figure coefficient of wind load in wing tunnel test, which can do help data processing of wing tunnel test.
从双线性退化板壳单元出发，演绎推导出了一种可以应用于空间有限元分析的退化梁单元。
In this paper, a degenerated beam element is developed, evolving from a bilinear degenerated shell element.
借助数学推导对档差进行推理、演绎，有助于对档差大小的理解。
In this paper the author tries to deduce variation by the method of mathematics reasoning. It will be very helpful for us to understand variation.
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