| 11. | The rest of the river was diverted into underground channels in the 1960s with the highway construction.
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| 12. | In wetter conditions water flows a greater distance across the limestone as underground channels and chambers fill up.
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| 13. | They escape through the city's underground channels, which were the patterns Kepler had traced in his basement.
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| 14. | There are numerous ducts to keep the equipment cool and an underground channel to divert the cooling water for the transmitters.
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| 15. | This underground channel is approximately 3.5 km long, 10 to 60 m wide and over 140 m high.
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| 16. | However, Mr Cheung said there was a possibility that liquid pollution could flow to the sea through some artificial underground channels.
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| 17. | Refugees have been drawn here with hopes of catching a clandestine ride on freight or passenger trains passing through the underground Channel tunnel.
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| 18. | The lagoon is entirely enclosed by land, however it is connected to the sea by underground channels, and is quite salty.
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| 19. | They wore black hooded coats and operated at night from their refuge in the remains of the catacombs and underground channels of Palermo.
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| 20. | The vehicles were equipped with a " grip " system, detachable pincers which took hold of the cable in the underground channel.
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