| 31. | Only 139 of the 300 stations surveyed had both working air pumps and working tire-pressure gauges.
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| 32. | The air pumps were driven from each crosshead.
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| 33. | Air pumps, such as the roots blower, use meshing impellers to move air through a system.
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| 34. | However, the system requires an air pump.
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| 35. | Roads were bad and Cunninghams were equipped with an air pump for easier repair of punctured tires.
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| 36. | Air pumps were driven from LP crosshead.
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| 37. | There is even a built-in air pump in the back for inflating kiddie pools or novelty gifts.
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| 38. | In response, the gorilla strikes the tire from before, which is still attached to the air pump.
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| 39. | Air pump driven from LP crosshead.
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| 40. | In order to be used by the air pumps, it must first be brought up to vehicle speed.
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