| 31. | Some military weapons use rockets to propel warheads to their targets.
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| 32. | They have also helped to propel the local real estate market.
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| 33. | The Alderson and Fusion drives propel starships to other star systems.
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| 34. | Due to the weight, the engine also propels the mower.
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| 35. | These could be turned 180 degrees to propel the car backward.
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| 36. | Barge ships were large vessels that lacked engines to propel them.
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| 37. | The Herald Angels Sing , that propels the carol known today.
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| 38. | Many species of spiders deliberately use the wind to propel themselves.
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| 39. | The company used several retailing innovations to propel its rapid growth.
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| 40. | The Matrix uses a spool valve system to propel a paintball.
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