列车管小减压量制动后120阀缓解波速的提高方法——120阀加速缓解作用的改进
열차관소감압량제동후120벌완해파속적제고방법——120벌가속완해작용적개진
The Method of Improving Release Propagation for Type 120 Valve after Train Pipe Braking with Small Pressure Decrement——Modification of Accelerated Release Function of Type 120 Valve
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