Air compressor, air bleed, cylinder pressure:
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Wind tunnel ventilation
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Soccer ball
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Truck Air Brakes
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A stream of air breaks out of a metal pipe
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Construction, compressor discharges air
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Air is bleeding through a hose
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Oxygen balloon
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Cut through the air with a gas burner
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Air release with a loud whistling creak,
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Balloon descent
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The work of oxygen equipment, the release of
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Air pressure
★★★★★