xizhimen
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Major breakthrough made in the longest freeway tunnel in China's Xinjiang
Tunnel boring machines have passed through the most difficult and dangerous part of the Tianshan Shengli tunnel in northwest China's Xinjiang. The 22-km-long expressway tunnel is part of 1,300-km expressway in the region.
Tunnel boring machines have passed through the most difficult and dangerous part of the Tianshan Shengli tunnel in northwest China's Xinjiang. The 22-km-long expressway tunnel is part of 1,300-km expressway in the region.
