As for the ramp engineering, the author put forward the difference incremental algorithms for the planar graph gradients.

针对斜坡道工程，提出平面图形梯度差值生长构建算法；

youdao

As for the ramp engineering, the author put forward the difference incremental algorithms for the planar graph gradients.

针对斜坡道工程，提出平面图形梯度差值生长构建算法；

youdao