Air is blown through a glass tube:
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A stream of air breaks out of a metal pipe
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Helium balloon
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Balloon inflating
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Cut through the air with a gas burner
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Fighting the fire with blacksmith furs
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Rope torsion
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Air compressor, cylinder pressure, air bleed
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Balloon descent
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The work of oxygen equipment, the release of
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Small compressor blowing air
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Steam
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Inflating a mattress
★★★★★