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Last rock falls in construction of Yunnan railway tunnel

By Li Yingqing and Zhou Huiying | chinadaily.com.cn | Updated: 2020-04-29 21:26
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After 12 years of hard work, the final section of rock gave way in the Dazhu Mountain Tunnel, Yunnan province's Baoshan city in Southwest China, on April 28, 2020. [Photo provided to chinadaily.com.cn]
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