steam brake

n.

汽闸；

Steam-brake
Steam brake for locomotive engines
Handbook for Railway Steam Locomotive Enginemen
Containment programs can brake steamrolling health care costs.
A Brief History of the Counter-Pressure Brake for Steam Locomotives
Experimental constraints on steam-driven eruptions at White Island volcano (New Zealand)
The electro-pneumatic brake system for steam road service
Brakettes Steamroll to Third Straight WMS National Title
Football: Brakes Going Full Steam Ahead towards Final; NON-LEAGUE FA VASE
Full Steam Ahead as Greggs Boss Moves on to Brakes