navigation aid meaning in Hindi

Examples

1. They still operate as navigation aids for the channel into Warrnambool harbour.
2. We shall try, as far as possible, to use medieval navigation aids,
3. For example, flights over the ocean _ where radio beacon navigation aids
4. Stars have been used as navigation aids ( see Celestial navigation ).
5. The ground visual navigation aids on 10 April 2010 were not effective.
6. Categories are navigation aids and should be brief and pointed and not mislead.
7. The runway, taxiway, and communication and navigation aids are County owned.
8. This is not fundamentally an encyclopedic topic; it's a maintenance / navigation aid.
9. Intended as practical navigation aids, they cost as little as ?.
10. The runway is not marked and other than a NDB lacks navigation aids.