Balloon descent:
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Air compressor, cylinder pressure, air bleed
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Air pressure
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Steam
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Balloon descent
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Mask breathing
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Balloon inflating
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Suction action of air
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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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The work of oxygen equipment, the release of
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Oxygen balloon
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Air is bleeding through a hose
★★★★★