Cleared to land with higher approach speed, be sure not to land beyond the touch - downzone.
可以用稍大进场速度，注意落地时不要超出规定接地地带。
2
In the upper layer, there are the blocking speed-downzone inter-belt, the whirling speed-downzone behind the belt, the conflux accelerating zone just behind the top of shelterbelt.
在林带上部，有林带间的阻滞减速区和林带后的涡旋减速区，在林带顶后部有集流加速区。
3
Water in the vadose zone drains down to the water table, leaving behind a thin coating of water on mineral grains.