| 11. | There were 10 generator rated of the outside revolving field, vertical shaft type.
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| 12. | The construction of the tunnel began with sinking of vertical shafts in 2010.
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| 13. | The nest is a vertical shaft, with several brood cells branching off it.
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| 14. | It is deep, with the final being a vertical shaft entering the Grande Salle.
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| 15. | They have a simple vertical shaft with short tunnels bearing horizontally from the base.
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| 16. | Above this base is a vertical shaft terminating in candleholders.
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| 17. | Vertical shafts from the surface provide access to each of the four underground mines.
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| 18. | TT33 consists of 22 rooms, reached by flights of steps, ramps and vertical shafts.
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| 19. | Within the power station will be 3 x 180 MW vertical shaft Francis turbines.
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| 20. | Vertical shafts are excavated along the route, separated at a distance of 20 35 m.
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