specified visibility distance

См. также в других словарях:

• visibility — /vɪzəˈbɪləti / (say vizuh biluhtee) noun (plural visibilities) 1. the state or fact of being visible; capability of being seen. 2. the relative capability of being seen under given conditions of distance, light, atmosphere, etc.: low visibility;… …  

• visibility — The ability as determined by atmospheric conditions and expressed in units of distance, to see and identify prominent unlighted objects by day and prominent lighted objects by night (ICAO). The lighted objects are of specified candlepower. While… …   Aviation dictionary

• surface visibility — Visibility observed from eye level above the ground. It is the distance at which prominent objects are clearly visible during the day and at night with lights of specified luminosity …   Aviation dictionary

• ВИДИМОСТЬ РАСЧЁТНАЯ — расстояние, обеспечивающее водителю при езде с расчётной скоростью возможность своевременно увидеть препятствие на проезжей части (Болгарский язык; Български) изчислителна видимост (Чешский язык; Čeština) délka rozhledu při návrhové rychlosti… …   Строительный словарь

• видимость расчётная — Расстояние, обеспечивающее водителю при езде с расчётной скоростью возможность своевременно увидеть препятствие на проезжей части [Терминологический словарь по строительству на 12 языках (ВНИИИС Госстроя СССР)] EN specified visibility distance DE …   Справочник технического переводчика

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• instrument meteorological conditions — Meteorological conditions expressed in terms of visibility, distance from cloud, and ceiling; less than minimums specified for visual meteorological conditions. Also called IMC. See also visual meteorological conditions …   Military dictionary

• IMC — The symbol used to designate instrument meteorological conditions. Meteorological conditions are expressed in terms of visibility, distance from clouds, and ceiling, less than the minimums specified for visual flight conditions …   Aviation dictionary

• Underwater searches — are procedures carried out by divers in order to find a known or suspected target object or objects in a specified search area under water. There are a number of techniques in general use by Commercial, Scientific, Public service, Military, and… …   Wikipedia

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