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| Arabic | English |
| متعدد الأضلاع | polygon In the vector type of GIS internal data organization spatial data are conveniently divided into point, line and polygon types. Some vector GIS store information in the form of points, line segments and point pairs; others maintain close lists of points defining polygon regions |
| نظام تنسيق متعدد الأطراف | multiagency coordination system |
| هيدروكربون أروماتي متعدد الدورات | polycyclic aromatic hydrocarbon Hydrocarbons containing two or more closed rings of atoms |
| هيدروكربون متعدد الدورات | polycyclic hydrocarbon Hydrocarbon molecule with two or more nuclei; examples are naphtalene, with two benzene rings side by side, or diphenyl, with two bond-connected benzene rings. Also known as polynuclear hydrocarbon |