About: http://webisa.webdatacommons.org/323520919

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	Distance d is related to the wavelength ?? of the ultrasound wave or signal by the formula d=n?????/2 [0026] where n is a positive integer.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com