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

ovince was fully completed on Tuesday, marking the dual breakthrough of the world's largest-diameter underwater shield tunnel.        The Tunnel stretches 5.75

场比赛，文班狂送7个大帽，本场6个，两场合计送给开拓者13记大帽，为自2011年伊巴卡后首人。

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3 kilometers constructed using the shield tunneling method. The project deployed the "Shanhe" shield machine, featuring an excavation diameter of 17.5 meters. Designed as a single-bore, double-deck tu

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