... 液体静力水准仪 hydrostatic level 测轨水准仪 rail level 测高程水准仪 altitude level ...
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road-rail level crossing 铁路平交道口
longitudinal level of rail 轨道前后高低 ; 前后高低
level rail 水平尺
·2,447,543篇论文数据，部分数据来源于NoteExpress
rail surface
Network Rail said the level crossing was not deemed as "high risk", as it is on a quiet road with little traffic.
BBC: Level crossing crash: One dead as train hits car
Jeremy Purvis asked how the new ScotRail franchise will maintain and improve the level of rail services across Scotland.
BBC: Photo of Scottish flag
In North Yorkshire, a driver escaped uninjured after his car was hit by a train when it skidded on snow and onto rail tracks at a level crossing near Selby.
BBC: Snow and ice leads to travel delays and school closures
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