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C909 Opens Second High-Plateau Route as Xi-Yu Tunnel Breaks
China's C909 aircraft launches its second high-altitude plateau route, while the Beiping Tunnel on the Xi'an-Chongqing high-speed railway breaks through.
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China's C909 aircraft launches its second high-altitude plateau route, while the Beiping Tunnel on the Xi'an-Chongqing high-speed railway breaks through.