air brake造句
31. The descent needs descent spaceflight clothes and air brake cabin which are novel products and are not be validated by flying.
32. The safety switch controlling the ignition circuit in gas engine and flameout magnetic valve in diesel engine is used in air brake system to realize the automatic protect.
33. When some braking moment on the axle, delay release air brake braking system response greatly slower than electronic operation, will appear braking resistance.
12