| 摘要：正 越南正根据其铁路更新和改造的总计划采取方法,恢复和发展铁路建设。其主要力量将投入到对铁路桥梁状态的改善上。干线上的桥梁总数达1700余座,总长超过40 km,其中有70余座桥的长度都在300 m以上。改造河内—胡志明线具有重要意义。根据计划, Abstract：Is Vietnam is taking measures to restore and develop railway construction in accordance with the general plan of its railway renewal and transformation. The main force will be put into the improvement of the state of the railway bridge. The total number of bridges on the trunk of the bridge is more than 1700, with a total length of more than 40 km, of which more than 70 of the length of the bridge is more than 300 m. Transformation of Hanoi - Hu Zhiming line is of great significance. According to the plan, 引言：越南正根据其铁路更新和改造的总计划采取方法,恢复和发展铁路建设。其主要力量将投入到对铁路桥梁状态的改善上。干线上的桥梁总数达1 700余座,总长超过40 km,其中有70余座桥的长度都在300 m以上。改造河内一胡志明线具有重要意义。根据计划,该线将更换600 km线路长度的轨枕 ，越南语论文题目，越语论文题目 |
