The basic theory, calculation method and optimization mechanism of the length optimization for work zones are discussed in this paper.
本文对养护作业区长度优化的基本原理、计算方法和优化机理进行了理论探讨。
The equations of the boundary layer containing microbubbles on the plate are established, then calculated employing a simple mixing length model and a finite difference method.
建立了含有微气泡的平板边界层方程，并采用一种简单的混合长度模型和有限差分方法对该方程进行了数值计算。
The evaluation indexes are chosen, and a new method, called critical transition section length, is put forward to determine track transition section length.
指出了在确定轨道过渡段长度时，所采用的动力学性能评价指标，提出了确定轨道过渡段长度的方法。
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