词典论坛联络

   英语
Google | Forvo | +
bacterial bed
环境 Nährboden m
生态 Rieselbettreaktor m; Rieselstromreaktor m; Tropfkörper m
bacterial bed A device that removes some suspended solids from sewage. Air and bacteria decompose additional wastes filtering through the sand so that cleaner water drains from the bed
环境 Nährboden m