Sign in | English | Terms of Use
DictionaryForumContacts

   French ⇄
Google | Forvo | +
boue activée de retour
construct. activated return sludge
nat.res. return activated sludge

 The server is undergoing maintenance and the site is working in read-only mode. Please check back later.">Add | The server is undergoing maintenance and the site is working in read-only mode. Please check back later.">Report an error | Get short URL | Language Selection Tips