包括车上传感器，路旁探测设施和自动轨道几何系统。
Examples include onboard sensors, wayside detection devices and autonomous track geometry systems.
轨道几何不平顺为平稳的正态分布和各态历经的随机变量。
The track geometry irregularity is a stable normal distribution and state-history random variable.
轨道几何状态检查是关系到铁路行车安全和旅客乘车舒适性的重要技术保障工作。
Inspecting the Geometry state of the track is an important work for the safety and comfort to the passengers.
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