| 21. | Now, using an air pump usually costs a quarter or 50 cents for five minutes.
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| 22. | The air pump is located in front diver side behind a splashguard near the wheel.
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| 23. | The vehicle air pumps must supply new pressurized air to make up for these losses.
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| 24. | Roiling bubbles rose from air pumps in the cutter's keel, helping break up the ice.
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| 25. | Robert Hooke also helped Boyle produce an air pump which helped to produce the vacuum.
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| 26. | An auxiliary arch head drove the engine's air pump.
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| 27. | A ski area may have the required high-output water pumps, but not an air pump.
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| 28. | Need for supplementary oxygenation using air pumps is also eliminated, which increases reliability and reduces complexity.
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| 29. | In addition to bottle cages, small air pumps may be fitted to these mounts as well.
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| 30. | It was patented by Robert Albrecht on July 21, 1953 . and used an air pump.
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