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wind direction indicator

авиац., Канада. manche à vent
мед.-биол., тех. indicateur de direction du vent
трансп. indicateur de direction de vent
 Английский тезаурус
Wind Direction Indicator
метеор., сокр. WDI
wind direction indicator
авиац., Канада. An indicator that is in the form of a truncated cone made of fabric and that is not less than 12 ft long and, at the larger end, not less than 3 ft in diameter, so constructed as to give a clear indication of the direction of surface wind and a general indication of wind speed; An actuated device for indicating visually to aircraft the direction of surface wind