air brake

US /ˈer breɪk/
UK /ˈer breɪk/
"air brake" picture
1.

freno ad aria, freno pneumatico

a brake operated by compressed air, used especially on heavy vehicles such as trucks and trains

:
The truck driver applied the air brake to slow down on the steep decline.
L'autista del camion ha azionato il freno ad aria per rallentare sulla ripida discesa.
Trains rely on powerful air brakes for safe stopping.
I treni si affidano a potenti freni ad aria per una frenata sicura.