The drilling of the Zhanjiang Bay undersea tunnel, a pivotal project of the Guangzhou-Zhanjiang high-speed railway, was completed Friday after 33 months of construction. #China #undersea #tunnel #tunnelboringmachine #project #railway
The drilling of the Zhanjiang Bay undersea tunnel, a pivotal project of the Guangzhou-Zhanjiang high-speed railway, was completed Friday after 33 months of construction. #China #undersea #tunnel #tunnelboringmachine #project #railway