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介绍钢顶铝裙活塞在东风4B型机车上的运用情况 ,并对暴露出的问题进行了分析 ,指出使用改进型钢顶铝裙活塞及采取其它措施的必要性和迫切性
This paper introduces the application of the steel roof aluminum skirt piston on the DF4B locomotive and analyzes the problems that have been exposed. It points out the necessity and urgency of using the modified steel roof aluminum skirt piston and other measures