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| English | French |
| co-ordinate system A reference system used to measure horizontal and vertical distances on a planimetric map. A coordinate system is usually defined by a map projection, a spheroid of reference, a datum, one or more standard parallels, a central meridian, and possible shifts in the x- and y-directions to locate x, y positions of point, line, and area features. A common coordinate system is used to spatially register geographic data for the same area | système de coordonnées |
| co-ordinate system | système de coordonnées |
| Co-ordinating Committee on the Ozone Layer | Comité de coordination pour la protection de la couche d'ozone |
| Co-ordinating Unit for the Mediterranean Action Plan | Unité de coordination du Plan d'Action pour la Méditerranée |
| Forest Soil Co-ordinating Centre | Forest Soil Co-ordinating Centre |