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wind-direction indicator

трансп. indicador de sentido do vento
wind direction indicator
мед.біол., тех. indicador da direção do vento
 Англійський тезаурус
wind direction indicator
авіац., 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
Wind Direction Indicator
метео., абрев. WDI