Armstrong, from the 1969 Technical Debrief - "I first noticed that we were, in fact, disturbing the dust on the surface when we were something less than 100 feet; we were beginning to get a transparent sheet of moving dust that obscured visibility a little bit. As we got lower, the visibility continued to decrease. I don't think that the (visual) altitude determination was severely hurt by this blowing dust; but the thing that was confusing to me was that it was hard to pick out what your lateral and downrange velocities were, because you were seeing a lot of moving dust that you had to look through to pick up the stationary rocks and base your translational velocity decisions on that. I found that to be quite difficult. I spent more time trying to arrest translational velocity than I thought would be necessary."

【 在 maga 的大作中提到: 】
: 嗯，阿波罗11号登月舱在离地这么近的地方悬停了3秒以上，降落处地面的浮土还这么厚，一点吹痕不见，它用的一定是磁悬浮技术吧？相比之下，嫦娥6号就不行了，地面一点浮土都没有，阿波罗号果然遥遥领先
: :
--
FROM 106.120.220.*