As to the common perpendicularplane of the two planes, some discussionis made in detail.
关于两平面的公垂平面,也作了详细的说明和论证。
2
When bouncing your flash, at certain angles close to that perpendicularplane, direct light will hit your subject.
当使用跳灯时,即使闪光灯以接近垂直的角度向上方打光,但仍有扩散的光线直接照射到被摄体上。
3
The first step of the migration is performed within the perpendicularplane, and the second step of migration is the spatial migration of the side waves.