高中生200米跑破纪录 曾想弃考打工

World's largest-diameter underwater shield tunnel achieves dual breakthrough in China(1/3)_蜘蛛资讯网

hrough of the world's largest-diameter underwater shield tunnel.        The Tunnel stretches 5.75 kilometers, with about 3.3 kilometers constructed using the sh

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nel in Jinan, east China's Shandong Province was fully completed on Tuesday, marking the dual breakthrough of the world's largest-diameter underwater shield tunnel.      

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