| 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 objects by night.
출처: www.airspaceusa.com/VFR-definitions.htm
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| visibility |
the visibility of a modular item specifies under what conditions the item is visible from a given module. The visibility of a modular item is defined by Prolog predicates called visibility declarations.
출처: www.clps.de/html/umsroot/node96.html
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