Air compressor, air bleed, cylinder pressure:
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Air is blown through a glass tube
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Oxygen balloon
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A stream of air breaks out of a metal pipe
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Rope torsion
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Mask breathing
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Air compressor, cylinder pressure, air bleed
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Blower, air broom
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Soccer ball
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Air is let through the regulator
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Air flow
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Suction action of air
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The work of oxygen equipment, the release of
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