河流纵剖面

这一最小功模式表明河流纵剖面演化方向是N由小变大，纵剖面形态由上凸抛物线经直线向下凹抛物线发展。

The mathematical model of minimum energy dissipation indicates that to increase value N is evolution direction of river longitudinal profile , and that shape of the longitudinal profile develop to a concave parabola pattern from a convex one .

河流纵剖面的研究对于河谷、河床过程的认识以及阶地成因的揭示具有重要的理论和实际意义。

It is of significance to disclose channel processes and the causes of formation for terrace in practice and theory by studying longitudinal profile of the channel .

华北平原河流纵剖面

Longitudinal profiles of the streams on the North China Plain

黄河下游河流纵剖面平行抬升的统计检验

On the statistical test of the parallel raising of the profile of the lower reach Yellow River

根据兰州及邻区黄河及其次级河流阶地纵剖面研究，分析了横穿活动断裂的河流阶地的变形特征。

According to the longitudinal profiles of river terraces of Yellow River and its branch rivers in Lanzhou and adjacent region , the deformation characteristics of river terraces which cross active faults are studied .

黄河下游河流下凹型纵剖面成因分析

A Note on the Contributing Factors of the Concave Longitudinal Profile of the Channel in the Lower Yellow River