Image: Nrla scheme
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Description: Scheme of the Gotthard Base Tunnel, centerpiece of the New Railway Link through the Alps NRLA aka Alptransit project, a 57 kilometer long double-tube tunnel in the heart of Switzerland. TBM = Tunnel boring machine
Title: Nrla scheme
Credit: translated from my already existing german scheme
Author: Cooper.ch
Permission: own work
Usage Terms: Public domain
License: Public domain
Attribution Required?: No
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