උමං හාරණ මැෂින් වැඩ කරන හැටි Tunnel boring machine (TBM)- |SL eTV
Автор: SL eTV
Загружено: 2020-08-14
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Tunnel boring machine (TBM)- Sinhala Review |SL eTV
Doppelschild TBM
උමං කණින යන්ත්ර
Tunnel boring machine (TBM)
Tunnal boring in not new to Srilankens. There were many done by drill and blast method. But the modern system is using TBM for tunneling.
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