航标灯

例句：

1. 1. The ship's navigational lights illuminated the dark night.
   船的导航灯照亮了黑暗的夜晚。
2. 2. The pilot used his navigational beacon to guide the plane back to the airport.
   飞行员使用他的导航灯引导飞机返回机场。
3. 3. The captain ordered the crew to switch off all navigational lights while they were underway.
   船长命令船员在航行中关闭所有导航灯。