| 11. | His superiors utilized his skills in drawing topographical maps of battlegrounds.
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| 12. | _Developing airborne and satellite-borne radar for locating hidden objects and enhancing topographical maps;
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| 13. | Although they had a topographical map, neither knew how to properly read it.
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| 14. | He can study a sparse topographical map, look up and locate similar-looking terrain.
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| 15. | Locally bought topographical maps will do for the rest of the trail in Brandenburg.
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| 16. | On the mantel was a topographical map of North Carolina.
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| 17. | Extensive topographical maps were made and some of the nation's top engineers were consulted.
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| 18. | Some are exotic : topographical maps of the seafloor and Venus, a swirling hurricane.
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| 19. | Down the hall, detailed topographical maps from the government and a NASCAR road atlas.
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| 20. | Supplement it with a compass and boating charts, or, if you're hiking, topographical maps.
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