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Site de l'association de protection de la nature Arnica Montana. Sorties, études, formations, conférences sur la botanique, la faune, la flore, les milieux naturels, la qualité de l'air, vous sont proposées toute l'année à Briançon, Hautes-Alpes, France.
Arnica-montana.org ~
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China Centre for River Restoration,中国河流修复中心
中国河流、河流修复、河流污染、水污染、水生态、河流健康、健康河流、生态流域，China river, river restoration, river pollution, water pollution, water ecology, hydro-ecology, aquatic ecology, river health, healthy river, eco-catchment
China-river.org ~
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Welcome to Rotec :: Rotec Diesel
Welcome to Rotec, an international leader in the design and development of clean, low-emission diesel engine technology. After 15 years of research and development, Rotec has developed the world’s only at-source diesel retrofit solution that simultaneously reduces environmentally toxic emissions currently associated with today’s diesel engines, including Particulate Matter (PM) and Oxides of Nitrogen (NOx). Independent audits verified up to 70% PM and NOx emission reduction or, alternatively, 90% engine power increase by Rotec’s technology.Rotec’s “bolt-and-go” system - REDD - is the first engine-mounted mechanical emission reducing solution. This revolutionary technology actually reduces PM and NOx production unlike current approaches to diesel emission reduction which simply minimize the poisonous gases by trapping or converting them in the tailpipe after the pollutants have been produced. Such approaches use bulky and expensive devices such as catalytic conve
Rotecdiesel.com ~
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