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本文主要叙述了120阀整个研制过程,将一系列室内外列车静置及运行等情况作了概要介绍,并对试验结果加以分析。120阀其主要性能已达到80年代水平:常用制动波速225～255m/s;紧急制动波速270～280m/s;缓解波速:180～200m/s。并且能与国内旧型制动机无条件混编运用。
This paper describes the 120 valve throughout the development process, will be a series of indoor and outdoor train standing and running conditions were briefly introduced, and the test results were analyzed. 120 valve its main performance has reached the level of the 80’s: the common brake wave speed 225 ~ 255m / s; emergency brake wave speed 270 ~ 280m / s; mitigation wave speed: 180 ~ 200m / s. And with the old domestic brake unconditionally mixed use.