https://biblioteca.iapg.org.ar/cgi-bin/koha/opac-search.pl?idx=&q=an%3A54675&sort_by=relevance&format=rss 2 0 20 ISBN: https://biblioteca.iapg.org.ar/cgi-bin/koha/opac-detail.pl?biblionumber=191691 By Kahkonen, Ville.
2017 .
3 p. ; 51-54

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]]> https://biblioteca.iapg.org.ar/cgi-bin/koha/opac-detail.pl?biblionumber=191691 ISBN: https://biblioteca.iapg.org.ar/cgi-bin/koha/opac-detail.pl?biblionumber=189097 By Aronen, Sari | Kahkonen, Ville.
2013 .
5 p. ; 26-31 , Sari Aronen and Ville Kähkönen, Metso Automation Inc., Finland, discuss rotary valve noise abatement in gas and steam flow control applications.

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