本文提出了楔杆的等效截面特性概念，而将计算长度系数保持不变。
In this paper, the method of equivalent cross-section character is introduced, remaining the coefficient of length unchanged.
本文提出了光散射等效截面分形维数的概念，并对分形维数的标定机理进行了讨论。
The concept of the fractal dimension of scattering equivalent section is presented, and the calibration mechanism of the fractal dimension is discussed.
将组合梁中混凝土翼缘板厚度按弹性模量之比换算，并保持宽度不变形成等效截面。
We put the concrete flange plate of the composite beam into the steel ones according to the elastic modulus ratio and keep the width of section unchanged, as a result, get a equivalent section.
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