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象式水泵

10 bytes added, 13:53, 25 September 2016
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{{#ev:vimeo|61981209|200|auto|<center><font size="2">象式水泵 - <br>马拉维Pump Aid</font></center>}}
===鸣谢===
*[https://en.wikipedia.org/wiki/Pump_Aid Pump Aid水泵援助组织]. 维基百科.
*[http://www.treehugger.com/clean-water/elephant-pump-wins-award.html 象式水泵赢得奖项]. 2005年7月.
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