| Fl. |
The distance between the center of a lens and the point where the image comes into focus. In projection, a shorter focal length yields a larger image on the screen for any given projection distance.
출처: www.pricedrightllc.com/id22.html
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| Fl. |
A unit of luminance equal to 0.3183010 candela per square foot, or to the uniform luminance of a perfectly diffusing surface emitting or reflecting light at a rate of one lumen per square foot, or to the average luminance of a surface emitting or reflecting light at that rate. An unobstructed sky of one footlambert uniform luminance contributes one footcandle of illuminance on a horizontal plane.
출처: lightingdesignlab.com/library/glossary.htm
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| Fl. |
Florida - Tallahassee
출처: www.politicalinformation.net/encyclopedia/States_o...
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| Fl. |
Flight Level. Altitude at barometric setting of 1013.2 millibars or 29.92 inches of mercury, expressed in rounds hundreds of feet. This is usual mostly above 18,000 feet. FL350 is 35,000 feet.
출처: www.airodyssey.net/reference/glossary.html
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| Fl. |
A surface of constant atmospheric pressure which is related to a specific pressure datum (1013.2 hecto Pascals) and is separated from other such surfaces by specific pressure intervals. (NIVEAU DE VOL)
출처: www.msc-smc.ec.gc.ca/msb/manuals/manair/html/defin...
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