The pilot reported badvisibility over the airport .
飞行员向机场报告能见度很低。
2
When there is wind, rain and snow, fog, lightning etc. Bad weather or badvisibility, should avoid operation, so as to avoid accidents.
遇有大风、雨雪、雾霾、雷电等恶劣天气或视线不良时，应避免作业，以免发生意外。
3
Aiming at the safety requirement for the traffic and transportation under badvisibility weather, a lidar visibility meter is designed to measure the horizontal and slant visibility.