In oil pipeline's river crossing, the characteristics of heavy load of pipeline's dead weight and large span of design will bring many problems to engineering design and construction.
在输油管道跨越河流时，其自重荷载大、设计跨度大的特点给工程设计和施工带来了诸多问题。
Along with the construction of large-span, river-crossing Bridges, vehicle-bridge coupling vibration will make catenary vibrate, which can further affect pantograph-catenary coupling vibration.
随着大跨距跨江铁路桥的建设，车和桥的耦合振动会引起接触网的振动，进而影响弓网的耦合振动。
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