梯形断面 meaning in English

trapezoidal cross-section
trapezoidal section

Study on longitudinal dispersion coefficient in open channel trapezoidal cross - section
梯形断面明渠中纵向离散系数研究
In this paper the basic principle of the method of characteristics is described , and is constructed an explicit scheme for dam break simulation of one - dimensional dam instant all break waves flow of a low dam with rectangle section and a huge dam with trapezia section , and of two - dimensional dam instant part break waves flow with simplest space operator splitting
本文模拟了一维矩形断面低坝和梯形断面巨型坝瞬间全溃的洪水波演进过程，给出了与分析解的比较，并结合算子分裂的特征线法对二维瞬间部分溃坝时洪水波的演进过程进行了数值模拟。