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Tunnel collapse: Sniffer dog to be used to locate trapped men as muck solidifying, says Dt CollectorThe collector said the officials are expecting the conveyor belt to function today and for further excavation some space has to be created at the Tunnel Boring Machine.
The world's largest earth pressure balance (EPB) double shield hybrid tunnel boring machine, or TBM, is officially rolled off the production line for the first time in Changsha, Hunan province, on ...
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