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Longest tunnel on Beijing-Zhangjiakou high-speed rail network achieves new milestone

chinadaily.com.cn | Updated: 2018-11-12 13:46
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Workers drill in the Zhengpantai tunnel for Beijing-Zhangjiakou high-speed railway in Chongli, North China's Hebei province, on Nov 10, 2018. [Photo/CGTN]

The double-track tunnel links Beijing to Zhangjiakou, where most of the Olympics' alpine skiing events will take place.

When the 2022 Winter Olympics starts, it will take passengers only three minutes to cross the 12.974 km tunnel.

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