cross line curve的意思|示意

In calculation models of cutting volume for dredging project, the cross section is usually a special one through survey points, and the curve of the river bed is assumed to be a line or a polyline.

通常疏浚工程中挖槽土方量计算模型的河床横断面是通过测量点的特殊断面，该断面轮廓曲线假定为近似直线或折线。

Deviate from embankment centre line, subside light to subside along cross section direction curve take the form of basin promptly.

越偏离路堤中线，沉降越小即沿横断面方向沉降曲线呈盆状。