File:Tunnelage en sol meuble, Museum of History and Technology, Gutenberg Project.gif

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Soft-ground tunneling, Museum of History and Technology, Project Gutenberg

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Français : Tunnelage en sol meuble, Museum d'Histoire et de Technologie (Museum of History and Technology), d'après un texte : Contributions from The Museum of History and Technology. Numérisé par Project Gutenberg.

Paper 41: Tunnel Engineering — A Museum Treatment, by Robert M. Vogel, d'après des images d'époque telle celle-ci :

Date 16ème siècle
Source Project Gutenberg,https://www.gutenberg.org/files/39785/39785-h/images/fig_41_18_lrg.png
Author Unknown authorUnknown author

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Creative Commons CC-Zero This file is made available under the Creative Commons CC0 1.0 Universal Public Domain Dedication.
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current14:40, 11 May 2023Thumbnail for version as of 14:40, 11 May 20231,050 × 1,134 (326 KB)Bernard de Go Mars (talk | contribs)Uploaded a work by Unknown from Project Gutenberg,https://www.gutenberg.org/files/39785/39785-h/images/fig_41_18_lrg.png with UploadWizard

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