Tag Archivio per: breakthrough
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admin
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admin2011-10-27 07:13:352011-10-27 07:13:35Breakthrough della galleria di Yintao nel Gansu
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admin
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admin2010-11-24 14:55:002010-11-24 14:55:00In Laos il breakthrough della TBM dopo 5.320 metri di scavo
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