一、技术改造,使老厂做出较大贡献 我们大连机车车辆工厂是一个具有八十多年历史的老厂。解放前,设备陈旧、厂房简陋,只能修理蒸汽机车和车辆。解放后,我们先后进行了三次较大的技术改造,使工厂变成一个初具规模的现代化工厂,从修理到制造,从蒸汽到内燃,产品的更新换代,促使设备不 First, technological transformation, so that the old factory to make greater contributions The Dalian locomotive and rolling stock factory is an old factory with a history of more than 80 years. Before liberation, the equipment was outdated and the plant was poor, and only steam locomotives and vehicles could be repaired. After the liberation, we successively carried out three major technological transformations to make the factory a modern factory that started to take shape, from repairs to manufacturing, from steam to internal combustion, and the upgrading of products, prompting the failure of equipment.