Keywords: Pump noise.gif en wikibooks Adrignola CommonsHelper 2005-12-07 Gks wikibooks en wikibooks English Wikibooks Gks original upload log page en wikibooks Pump_noise gif 2005-12-07 14 58 Gks 704×464× 40353 bytes <nowiki></nowiki> Unidentified diagrams Unidentified graphs Photomontages Images containing text Computer and technical equipment with transparent background Diagrams in English |