探讨了在道路数据采集后获得许多点的坐标，如何利用采集的坐标数据计算线形参数。
How to calculate the road alignment parameters with captured coordinate data is discussed in this paper.
而山区公路分离式断面路线设计的重点是纵断面设计，在纵断面线形设计中通常使用两项控制参数：容许最大纵坡和最大容许坡长。
The emphasis of montane highway design is vertical alignment's design, there are usually two controls parameters: concessional maximal longitudinal and concessional maximal length of grade.
当源项是解的非线形函数时，发现定常状态的误差是刚性参数的单调增加函数。
The steady error is an increasing function of the stiffness parameter if the source term is nonlinear.
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