释义 |
vacuum brakenounA railway vehicle brake operated by changes in pressure in a continuous pipe which is generally kept exhausted of air by a pump and controls similar brakes throughout the train.It may be admitted that with the increase in speeds and loads, few railways now use the vacuum brake....- Johanns was thoroughly burnt but managed to stop the train by using a vacuum brake.
- The manifold is sealed with a spin-welded end cap (which also serves as a mounting bracket for the vacuum brake booster).
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