The utility model relates to a free-floating light beacon of navigational aid on water in the sea, a river, or a harbor.

本实用新型是一种海、河港口用水上助航活节式灯桩。

youdao

The utility model relates to a free-floating light beacon of navigational aid on water in the sea, a river, or a harbor.

本实用新型是一种海、河港口用水上助航活节式灯桩。

youdao