bn:15932471n
Noun Concept
Categories: long volume value, Navigation, Lighthouses, Maritime signalling
EN
sector light  sector lights
EN
A sector light is a man-made pilotage and position fixing aid that consists of strictly delineated horizontal angle light beams to guide water-borne traffic through a safe channel at night in reasonable visibility. Wikipedia
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EN
A sector light is a man-made pilotage and position fixing aid that consists of strictly delineated horizontal angle light beams to guide water-borne traffic through a safe channel at night in reasonable visibility. Wikipedia
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