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浮遊取水口

13 bytes removed, 03:30, 2 November 2017
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干ばつ対策に関する追加情報:[[干ばつ被害の多い地域の強固なWASHシステムResilient WASH systems in drought-prone areas]]。
===建設、操作およびメンテナンス===
Ndjo11
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