- operational hours
- години нальоту
Англійсько-український словник авіаційних термінів / Уклад.: Р.О. Гільченко. - К.: НАУ. 2009.
Англійсько-український словник авіаційних термінів / Уклад.: Р.О. Гільченко. - К.: НАУ. 2009.
Operational Response Group — Active 2005 present Country … Wikipedia
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operational day — In respect of each Euroclear Business Day, the hours during which the Euroclear System is active. Euroclear Clearing and Settlement glossary … Financial and business terms
operational day — In respect of each Euroclear Business Day, the hours during which the Euroclear System is active … Euroclear glossary
business hours — hours during which a business is officially open and operational … English contemporary dictionary
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Supermarine Spitfire operational history — November 1942 photo of a very early Mk IXb of 306 (Polish) Toruński Squadron. Main article: Supermarine Spitfire The Supermarine Spitfire, the only British fighter to be manufactured before, during and after the Second World War, was designed as… … Wikipedia
410 Tactical Fighter Operational Training Squadron — 410 Squadron banner Active 1941–1945 1946–1964 1968–present … Wikipedia