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Excavation of LSS1
Excavation of the long straight-section LSS1 by an Alpine boring machine. View of the connection chamber, in the background, the roofs of the enlarged sections (8.5 m and 6 m). On the right, the access tunnel to PP1.
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1972
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| Acceso en línea: | http://cds.cern.ch/record/41600 |