Assertion: rotating turbine | /r/Synonym | the ljungström turbine
Facets:
value: usually
type: DEGREE
Source sentences:
text: A contra-rotating steam turbine, usually known as the Ljungström turbine, was originally invented by Swedish Engineer Fredrik Ljungström (1875–1964) in Stockholm, and in partnership with his brother Birger Ljungström he obtained a patent in 1894.