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Technical innovation in the “Beishan No. 1” hard rock tunnel boring machine for high-gradient spiral tunnels

Crossref DOI link: https://doi.org/10.1007/s42524-023-0288-7

Published Online: 2024-02-07

Published Print: 2024-03

Update policy: https://doi.org/10.1007/springer_crossmark_policy

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