2. Ulusal Tünelcilik ve Yer Altı Yapıları Kongresi ve Sergisi 2019
(2nd National Tunneling and Underground Infrastructure Congress and Exhibition 2019 - Ankara -Approved by ITA International Tunnelling and Underground Space Association) İlki 2016 yılında yapılan Ulusal Tünelcilik ve Yer Altı Yapıları Kurultayı ile Sergisi'nin ikincisi 4-5 Aralık ...Tags: tunnelling congress and exhibition, tunnelling congress and exhibition 2019
cover tunnel photo by: Matt Brown from London, England / CC BY
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