摘要
通过全面分析１２０阀运用中发生的各种故障，提出了对１２０ 阀的改造方案，并详细介绍了改后１２０ 阀的各种试验情况。
Through comprehensive analysis of various troubles happened in operation of the 120 valves,the reform scheme for the 120 valves is put forward,and the various testing conditions after the reform are described in detail.
出处
《铁道车辆》
1999年第10期7-12,共6页
Rolling Stock
