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

argest-diameter underwater shield tunnel.        The Tunnel stretches 5.75 kilometers, with about 3.3 kilometers constructed using the shield tunneling method.

    双翅披着霞光城市静矗远方每一次振翅都为风而翱翔湛蓝的天空写满飞翔的诗行（摄像：郭春风 张伏麟）

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

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