Air compressor, air bleed, cylinder pressure:
-
Suction action of air
-
Small compressor blowing air
-
A stream of air breaks out of a metal pipe
-
Rope torsion
-
Cylinder pressure, air bleed, Air compressor
-
The work of oxygen equipment, the release of
-
Wind tunnel ventilation
-
Helium balloon
-
Balloon inflating
-
Air flow
-
Inflating a mattress
-
Air release with a loud whistling creak,
★★★★★