engineer overseeing tunnel boring machine modern underground construction |
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| navigate by keyword : engineer construction tunnel machine boring infrastructure safety hard hat yellow jacket tablet technology development industry underground man worker engineering industrial modern progress future building project site equipment heavy work professional uniform protective gear supervisor inspection digital control planning urban transportation civil architecture |
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| An engineer in a yellow hard hat and high visibility jacket holds a tablet, overseeing a large tunnel boring machine inside a concrete construction tunnel. This depicts modern infrastructure development and underground engineering |
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