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réseau(ray-zoh ) A reference grid of fine lines that are photographically produced in the emulsion of a photographic plate and used in measurements of star positions.
Collins Dictionary of Astronomy © Market House Books Ltd, 2006
A grid that is photographed by a separate exposure on the same plate as images of celestial objects.
The term adopted by the World Meteorological Organization for the worldwide network of meteorological stations which have been chosen to represent the meteorology of the globe (réseau mondial).
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.