| 21. | The mats once were used to build temporary military landing strips.
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| 22. | The landing strip outside Seville is popular on weekends with model airplane enthusiasts.
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| 23. | Colombia's leftist guerrillas have started providing protection for cocaine laboratories and landing strips.
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| 24. | It has a landing strip, which is currently not in use.
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| 25. | A reserve landing strip for airplanes was also put in place.
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| 26. | There is a limited number of planes, pilots and landing strips.
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| 27. | Webb and Sons also assisted in the camouflage of landing strips.
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| 28. | I've never heard that NASA had any landing strip in Africa.
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| 29. | The airplane landing strip is known as " Bugtown Airport ".
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| 30. | The small convoy pulls away from the landing strip, heading east.
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