In North Waziristan, for example, a 2006 agreement led to a tripling of cross-border infiltration.
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2. 北水南调工程是东北地区一项大型的跨流域调水工程，优选调水量是其关键问题之一。
The North-to-South Water Diversion Project is a large-scale inter-basin water transfer project, and the reasonable determination of the volume of water diversion is a key problem.
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3. 北水南调工程是东北地区一项大型的跨流域调水工程，优选调水量是其关键问题之一。
The North-to-South Water Diversion Project is a large-scale inter-basin water transfer project, and the reasonable determination of the volume of water diversion is a key problem.
