For calibration of shaft cross central line,traditional instrument cannot be erected due to limitations of site conditions,it proved quick,accurate and effective to apply RTK,electric total station,data recorder and fourth order traverse measurement method to indirectly determine the cross central line.
在井筒十字中心线恢复标定工程中,由于现场条件限制,传统仪器无法架设,通过RTK、电子全站仪及电子手簿等手段和四等导线测量方法间接测定井筒十字中线点,快速精准,效果显著。
参考来源 - 井筒十字中心线恢复标定方法探讨·2,447,543篇论文数据，部分数据来源于NoteExpress
A northern or Central Line would face severe winter weather. And it would have to cross a wild area called Nebraska.
北方或中部那两条铁路线在冬天面临恶劣的天气，而且这两条路将通过一个叫内布拉斯加的荒野。
The station is small, not on a direct line to King's Cross, and four stops would take you to Tottenham Court Road, five to Leicester Square and six to Charing Cross, all of which are very central.
车站很小，没有直通国王十字车站的线路，经过四个停车站会把你带到托特纳姆法院路，五个停车站到莱斯特广场，六个到查林十字路，都是非常靠近中心的。
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