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Communauté rurale --- Rural communities --- Pays en développement --- Developing countries --- Approvisionnement en eau --- water supply --- Pompe --- Pumps --- Propriété technologique --- technical properties --- Efficacité --- Efficiency --- Hand pumps --- Water-supply, Rural --- Rural water-supply --- Sanitation, Rural --- Hand-operated pumps --- Handpumps --- Pumps, Hand --- Pumping machinery --- Testing
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Economic geography --- Africa --- Water resources development --- Rivers --- International rivers --- Ressources en eau --- Rivières --- Cours d'eau internationaux --- Economic aspects --- Exploitation --- Aspect économique --- Business & Economics --- Agricultural Economics --- Rivers, Right of navigation of --- Energy development --- Natural resources --- Water-supply --- Brooks --- Creeks --- Runs (Rivers) --- Streams --- Bodies of water --- Law and legislation
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Pompes à main --- Pompes à main --- Eau --- Essais. --- Approvisionnement rural
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Freedom of the press --- Freedom of speech --- Liberté de la presse --- Liberté d'expression --- Black, Hugo LaFayette,
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