The work of oxygen equipment, the release of oxygen:
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Air release with a loud whistling creak,
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Cut through the air with a gas burner
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The work of oxygen equipment, the release of
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Air is bleeding through a hose
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Air flow
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Steam
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Balloon descent
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Small compressor blowing air
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Air is blown through a glass tube
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Compressor discharges air, Construction
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Soccer ball
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Oxygen balloon
★★★★★