| 1. | The area around Hajdu ki kukovi has a complex underground drainage system.
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| 2. | The course was unplayable, even with the club's high-tech, underground drainage system.
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| 3. | There exists underground drainage system in the city since 1967 68.
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| 4. | The underground drainage system has not been introduced in the town as yet.
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| 5. | Underground drainage system has been introduced recently in the town.
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| 6. | A completely concealed underground drainage system helps quickly remove water.
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| 7. | There are underground drainage channels for rainwater in several places.
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| 8. | It's less expensive than putting in underground drainage ."
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| 9. | The underground drainage system was constituted in 1998, covering 22 percent of the corporation area.
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| 10. | He urged them to be responsible and ensure that the underground drainage system was functioning properly.
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