Submitted by György Chityil ... on Fri, 01/19/2018 - 23:31 Hierarchy: NounDescription: {{engineering}} A line joining two centers, or fulcra, as of wheels or levers.Ngram: line of centersNgram Text: line of centersSource: WiktionaryIssue: 0Wiktionary tag: engineeringNgram Count: 3
