Home > Photos > Maintenance workers work at Xinguanjiao Tunnel in NW China's Qinghai

Maintenance workers work at Xinguanjiao Tunnel in NW China's Qinghai

Publish Time: 2018-07-02 Author: From: Xinhua
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A maintenance worker checks equipment at the Xinguanjiao Tunnel, the world's longest plateau rail tunnel, along the Qinghai-Tibet Railway in northwest China's Qinghai Province, June 27, 2018.
A maintenance worker checks equipment at the Xinguanjiao Tunnel, the world's longest plateau rail tunnel, along the Qinghai-Tibet Railway in northwest China's Qinghai Province, June 27, 2018.
With a length of 32.6 kilometers, Xinguanjiao Tunnel was put into operation at the end of 2014. (Xinhua/Hou Deqiang)

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