... line-up 排成列，调平，弄直，铺砌耐火材料，垫整，调节，调成直线 line upkeep 线路维护 line-up test 校准试验，校直试验 ...
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It is a good discuss for local optical cable line maintenance, also, has a highly practical value. Decision support system (DSS) is a new type computer knowledge.
为此,从决策支持系统(DSS)角度出发,结合本地网光缆线路的资源普查,建立一个初步的模型指导维护,既是对本地网光缆线路维护工作的有益探讨,也同时具有较高的实用价值。
参考来源 - 决策支持系统（DSS）在传输线路维护中的应用It is a good discuss for local optical cable line maintenance, also, has a highly practical value. Decision support system (DSS) is a new type computer knowledge.
为此,从决策支持系统(DSS)角度出发,结合本地网光缆线路的资源普查,建立一个初步的模型指导维护,既是对本地网光缆线路维护工作的有益探讨,也同时具有较高的实用价值。
参考来源 - 决策支持系统（DSS）在传输线路维护中的应用·2,447,543篇论文数据，部分数据来源于NoteExpress
文章对线路维护工程中的光缆线路障碍查找、光纤衰减均匀性、光纤接续和偏振模色散（PMD）等问题进行了分析。
This paper discussed the trouble shooting, attenuation uniformity of optical fiber, optical fiber splicing and PMD problem in the maintenance of optical fiber line.
而异常情况包括不可抗拒自然力、提供者的预定停机维护或光纤线路的意外中断。
Exceptions include ACTS of God, the provider's scheduled downtime maintenance, or accidental cutting of the fiber optics line.
在致力于提供旅客服务的线路上，轨道维护应安排在无车辆运行时进行，以确保安全。
In corridors where there is dedicated passenger service, track maintenance will likely be scheduled during times in which no trains are operating, which will enhance safety.
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