night obstruction marking

例句：

1. 1.The night obstruction markings on the road were designed to prevent accidents.
   道路上的夜间障碍物标记是为了预防事故。
2. 2.The night obstruction markings on the road were designed to prevent accidents.
   道路上的夜间障碍物标记是为了预防事故。
3. 3. The night obstruction markings on the road were designed to prevent accidents.
   道路上的夜间障碍物标记是为了预防事故。