Yard of Hudong Station, Daqin Line as an example, this paper expounds the optimization Retrofit scheme of lamp bridge lighting in railway yard from the aspects of economy, maintenance and security.
以大秦铁路湖东站三场为实例，从经济、维修、安全等方面，对铁路站场灯桥照明优化改造方案进行了论述。
In this paper description is given to the optimization of the 2 nd widening and improving scheme of the Nancheng Bridge, as well as the main facilities and their effects.
通过对南城桥二次拓宽改造的方案优化过程、主要技术措施及改建成效等方面的阐述，探讨中小桥梁老桥改建技术。
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