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Rope pump

90 bytes added, 09:03, 6 September 2010
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* [http://www.appropedia.org/Rope_pump Rope pump article at Appropedia]
* [[Solution_of_the_week_7|Akvo solution of the week 7]]
* [[Solution_of_the_week_9|Akvo solution of the week 9]]
==References==
<references/>
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