construction subway station trench mounting chamber the tunnel boring machine with steel struts |
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| navigate by keyword : boring build busy chamber city construction crane cutter deep dig drill engineer engineering equipment excavation hole industrial industry infrastructure kiev machine metal metro mounting shield station steel struts subway technology transport transportation trench tube tunnel ukraine underground urban work workplace |
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| Construction of a subway station in a trench. Mounting chamber of the tunnel boring machine. Trench with steel struts. |
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