Тэги:
#tunnel #tunnel_construction #construction #tunnel_boring_machine #mega_dam_construction #tunnel_construction_processing_line #construction_of_tunnel #tunnel_construction_method #channel_tunnel_construction #cut_and_cover_method_of_tunnel_construction #tunnels #drill_and_blast_method_of_tunnel_construction #tunnel_exavation_&_methode_of_construction #tunnel_excavation_&_methods_of_construction #tunnel_making_process #mrd_equipmentКомментарии: