主法线方向 meaning in English
principal normal direction
Examples
- Under the all different structures " combination , the water surface had large bias and turn - around in the torturous path , and in the middle of the path along the longitude , there had the regularity that sink bank surface was higher than the convex bank one
在所有结构组合条件下，弯道水面都有较大偏斜和扭曲，并且在弯道中部主法线方向上，基本为凹岸水面高凸岸水面低的规律。