About: http://webisa.webdatacommons.org/396097582

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Typically the radiating surfaces of both the visualization and therapy transducers are surfaces of revolution of segments of the conic sections, particularly circles and ellipses.
http://www.w3.org/ns/prov#wasQuotedFrom	google.co.uk