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Close-up: Excavation of 20,000 meters into Tianshan Mountain
In Section 5 of the Urumqi-Yuli Expressway ( tunnel entrance), engineering vehicles clear road ice in the main tunnel
cover tunnel photo by: Matt Brown from London, England / CC BY
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特寫：掘進天山兩萬米-新華網
big5.news.cn特寫：掘進天山兩萬米-在烏魯木齊至尉犁高速公路5標段（隧道入口端），工程車輛在主洞清理道路積冰（2月20日攝）。