radio navigational aids वाक्य

उदाहरण वाक्य

1. In order to develop international regulation for the frangibility of equipment or installations at airports, required for air navigation purposes ( e . g ., approach lighting towers, meteorological equipment, radio navigational aids ) and their support structures, ICAO initiated the " Frangible Aids Study Group " in 1981, with the task to define design requirements, design guidelines and test procedures.