1·Intersection point closure is one of the difficulties in the processing.
交点闭合是本次处理的难点之一。
2·Special consideration is paid on the compatibility of free surface and body surface conditions at the intersection point.
对于自由面和摇板交点处自由面条件和物面条件的相容性作了专门的考虑。
3·Throught the 3-D compensation spatial correction for 2-d migrated stacking section, the 3-D compensation method makes two migrated stacking section closed in the intersection point.
三维补偿法是通过对二维叠偏剖面的三维补偿空间校正，使两条叠偏剖面在交点闭合。
4·Translate the intersection point B(0, b) to the origin. (M1)
平移交点B（0，b ）到坐标原点，写出平移矩阵M1。