aids to navigation

فِي ٱللُّغَةِ ٱلْإِنْجْلِيزِيَّةِ:

اسم

aids to navigation

1. قالب:military charted marks (such as buoys, beacons, lights, and electronic devices) to assist navigators.

References

• FM 55-501 Marine Crewman’s Handbook