Drills that make the 36-day miraculous rescue successful
(chinadaily.com.cn) Updated: 2016-01-31 11:47 |
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A drill that was used to dig a 220-meters-deep ascending tunnel to reach trapped miners during a rescue operation after a mine collapsed in Baotai, Pingyi county of Linyi, East 皇冠体育app's Shandong province. [Photo by Ju Chuanjiang/chinadaily.com.cn] |