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。
Hence for many years maintenance optimization has been one of the most active subjects of research in the maintenance management field.
因此，维修优化多年来一直是维修管理领域最活跃的研究课题之一。
In order to ensure oil and gas pipeline safety operation, it is necessary for the building pipeline and existing aging one to make inspection & maintenance costs and reliability optimization.
为确保油气管道的安全运行，有必要对新建管道和在役老龄管道系统进行长期检测和维修优化，使得在检测及维修费用与可靠性之间达到最佳。
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