Optimal maintenance scheduling of components, traction substations and catenaries is formulated for minimum cost, maximum reliability and both.
设备维修计划可靠性最大模型的约束条件主要为最大维修费用、最小可用度以及运行总时间；
When connection come into the phase of larger deformations, axial force turn into the tensile force, prevent the further deform, it means that catenaries action occur.
进入大变形阶段后，连接轴向约束压力变为约束拉力，轴向拉力阻止钢梁自身进一步变形，发生了悬链线效应。
In respect to the interaction between pantographs and catenaries of the straddle-type monorail system of Chongqing urban rail transit Line 2, there occurred the uneven wear of collector slide.
重庆轨道交通2号线跨座式单轨交通系统在弓网配合方面出现集电器滑块磨耗不均匀问题，分析其形成的原因，提出接触网拉出值改造方法，并讨论改造后的效果。
In respect to the interaction between pantographs and catenaries of the straddle-type monorail system of Chongqing urban rail transit Line 2, there occurred the uneven wear of collector slide.
重庆轨道交通2号线跨座式单轨交通系统在弓网配合方面出现集电器滑块磨耗不均匀问题，分析其形成的原因，提出接触网拉出值改造方法，并讨论改造后的效果。
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