党的十一届三中全会以来铁路取得了以下重大的成就。——经济管理由生产型转向生产经营型。在改革中逐步改变了高度集中的计划管理体制，给企业放权让利。“七五”期间，全路实行了全行业经济承包，打破了长期以来收支两 Since the Third Plenary Session of the 11th CPC Central Committee, the railway has made the following significant achievements. - Economic management shifted from production to production and management. In the process of reform, the highly concentrated program management system has been gradually changed, giving enterprises decentralization. During the “Seventh Five-Year” period, the entire province implemented the industry-wide economic contract and broke the long-standing revenue and expenditure