Taiyuan Railway Bureau has many Beijing locomotives, but most of them are only used in the station.

太局还有不少小北京，不过基本上都是站内用了。

youdao

This paper advances concrete method and procedure on how to program the software, and puts forward algorithm description on some difficult points. The software has been used in Beijing Railway Bureau.

本文就如何编制该软件提出了具体的方法和步骤，针对其中某些难点给出了算法描述，相应成果已被北京铁路局所采用。

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When Beijing Railway Bureau opened online ticket sales in January, 350 people booked train seats in the first five days.

CNN: THE E-TAIL REVOLUTION