Hebei province locates the yellow river downstream in the north region, containing Bejing city and Tianjin city, circumscribing by Shanxi, Neimeng, Liaoning, Shandong, Henan, and facing with Bohai.
河北省位于黄河下游以北地区,内含北京、天津,外接山西、内蒙、辽宁、山东、河南,并与渤海相临。
参考来源 - 河北省土地利用变化及其驱动机制研究·2,447,543篇论文数据，部分数据来源于NoteExpress
Zhu said some trains on the Bejing-Zhangjiakou line are "smart" as they provide 5G signals and wireless charging for passengers, as well as intelligent lighting.
朱说北京到张家口线上的一些火车很“智能”。车上有 5G 信号覆盖，为乘客提供无线充电以及智能照明。
The stations are managed by one control center, which is described by China Railway Beijing Group—also known as CR Bejing—as an "intelligent (智能的) brain".
这些车站由一个控制中心管理。该中心被中国铁路北京局集团，也就是北京铁路局，称为一个“智能大脑”。
在北京我几乎没有朋友。
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