沿轨道方向 meaning in Chinese

direction along a path

In the present , the models used widely are two kinds : the continuous model . the continuous model is supported by " smearing out " the discrete support along the track . giving a continuous viscoelastic foundation and a continuous layer represent sleepers
目前所使用的计算模型主要分为两种：一种为连续型模型：将沿轨道方向的离散支撑连续化，将枕木模拟为刚体或为有均布质量和刚度的梁，使枕木成为粘弹性地基上的连续层。