本文提出了阻力线性假设，并结合河槽断面的具体情况，对河槽的断面平均流速公式进行了探讨。
This paper proposes a scientific hypothesis that the resistance is linear and suggests a sectional average velocity formula for river flow which reflects the character of river.
通过对横断面进行线性校正，可以得到路面的车辙信息。
Through a linear correction, the rutting information of the road can be accurate get.
采用非线性模型，提出了输水渡槽的最优园底直角横断面。
This paper presents an optimal cross section of conveyance aqueduct with a nonlinear programming model, which is the circular bottom triangle.
文章应用非线性弹塑性模型，对层状土地层中浅埋隧道全断面开挖过程进行了三维有限元分析。
A nonlinear elastoplastic model is applied to simulate the full face 3-d excavation process of a shallow tunnel embedded in layered soil.
首先，实现了三角形双线性内插算法并应用于纵断面获取。
Firstly, the algorithm of triangular bilinear interpolation is shown in detail and applied to acquire the profile from TIN.
首先，实现了三角形双线性内插算法并应用于纵断面获取。
Firstly, the algorithm of triangular bilinear interpolation is shown in detail and applied to acquire the profile from TIN.
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